Am I reading it wrong or did they completely remove the mechanic for fighting with two weapons that aren't light? Meaning I can no longer wield 2 longswords, or 2 battle axes, or 2 warhammers, etc...
Is this right or am I missing something? Someone please explain it to me like I'm 5.
Two-weapon fighting got moved to the light property, yes.
This means that you can only use two-weapon fighting with two light weapons, the dual wielder feat ignores the light property for it's bonus action attack (switched for a non-2 handed melee weapon requirement) and there have been long arguments over if "weapon juggling" is valid to take advantage of that and the nick property to get two additional attacks. I don't think we need another discussion about the validity of weapon juggling.
Nick meanwhile moving the bonus action attack to an extra attack on the attack action makes it basically stronger than in 2014, it is improved action economy and then dual wield feat on top gives the ability to make then make another attack with a bonus action.
Dual Wielder feat doesn't give you an extra attack over and above that of the Nick property. Though everyone seems to be making this mistake
Sorry, but you're the one mistaken here.
First, The nick mastery doesn't give you an extra attack, it shifts the extra attack of the light property from a bonus action to an Extra attack
Second, The light property gives the ability to make an extra attack as a bonus action when you make an attack on the attack action with a light weapon and that bonus action must also be with a light weapon.
Third, Dual Wielder Feat gives the ability to make an extra attack as a bonus action when you make an attack on the attack action with a light weapon but that bonus action does not need to be with a light weapon, just a melee weapon that lacks the two-handed property.
In conclusion of these three. Nick affects the bonus action of the light property, Duel Wielder supplies it's own bonus action attack, thus you can make the light action attack using nick on the same action, you can then use the bonus action of Duel Wielder to perform another attack. This is RAW.
When you make the extra attack of the Light property, you can make it as part of the Attack action instead of as a Bonus Action. You can make this extra attack only once per turn.
To explain the Nick property, we should briefly cover that being able to attack twice while dual-wielding Light weapons has subtly changed in the 2024 Player’s Handbook. Instead of being covered under Melee Attacks, the rules for dual-wielding Light weapons are covered under the Light weapon property.
It still functions the same way: When you make an attack with a weapon that has the Light property, you can use a Bonus Action to make one attack with a different Light weapon you’re wielding.
The Nick mastery property allows you to make the additional attack you receive from wielding two Light weapons as part of the initial attack action.
Keep in mind that this doesn’t mean you can make a third attack as a Bonus Action, as the Light property specifies you only get one extra attack. But, while it may not pump your damage, this frees up your Bonus Action to use class/species abilities, such as the Rogue’s Cunning Action, while still getting an additional attack in.
It is intended to free up your bonus action to do other stuff. Not give you yet another extra extra attack.
When you make the extra attack of the Light property, you can make it as part of the Attack action instead of as a Bonus Action. You can make this extra attack only once per turn.
Yes, but Dual Wielder and the Light property are different features. Dual Wielder requires an attack with a weapon with the Light property as a prerequisite, but it is NOT using the bonus action attack granted by the Light property.
Am I reading it wrong or did they completely remove the mechanic for fighting with two weapons that aren't light?
This was discussed in another thread not too long ago. You're not missing anything. The devs probably didn't want characters gaining additional uses of certain mastery properties through two-weapon fighting.
If you have the Dual Wielder feat you can use two Light weapons you can make 2 additional attacks as R3sistance points out, or you can use one Light and one non-Light weapon to make only 1 additional attack but still have access to Push, Topple or Sap (which Light weapons never have.)
When you make the extra attack of the Light property, you can make it as part of the Attack action instead of as a Bonus Action. You can make this extra attack only once per turn.
Yes, but Dual Wielder and the Light property are different features. Dual Wielder requires an attack with a weapon with the Light property as a prerequisite, but it is NOT using the bonus action attack granted by the Light property.
Ooooh. You know what....I didn't realise that the bonus action attack of the light weapon property, and the bonus action from the 'Enhanced Dual-wielder' aspect of the feat were two completely separate but overlapping features that both give you an extra attack as a bonus action.
Apologies to R3sistance!
(Though I still wonder if the extra extra attack was the intended effect, but I guess that's irrelevant).
I really wish they had put a section in the book just titled "Summary of Dual-wielding" or something!
When you make the extra attack of the Light property, you can make it as part of the Attack action instead of as a Bonus Action. You can make this extra attack only once per turn.
Yes, but Dual Wielder and the Light property are different features. Dual Wielder requires an attack with a weapon with the Light property as a prerequisite, but it is NOT using the bonus action attack granted by the Light property.
Ooooh. You know what....I didn't realise that the bonus action attack of the light weapon property, and the bonus action from the 'Enhanced Dual-wielder' aspect of the feat were two completely separate but overlapping features that both give you an extra attack as a bonus action.
Apologies to R3sistance!
(Though I still wonder if the extra extra attack was the intended effect, but I guess that's irrelevant).
When you make the extra attack of the Light property, you can make it as part of the Attack action instead of as a Bonus Action. You can make this extra attack only once per turn.
Yes, but Dual Wielder and the Light property are different features. Dual Wielder requires an attack with a weapon with the Light property as a prerequisite, but it is NOT using the bonus action attack granted by the Light property.
Ooooh. You know what....I didn't realise that the bonus action attack of the light weapon property, and the bonus action from the 'Enhanced Dual-wielder' aspect of the feat were two completely separate but overlapping features that both give you an extra attack as a bonus action.
Apologies to R3sistance!
(Though I still wonder if the extra extra attack was the intended effect, but I guess that's irrelevant).
I really wish they had put a section in the book just titled "Summary of Dual-wielding" or something!
We all make mistakes, it's fine.
If it's intended, hard to say but from how it affects DPR, it's possible it is intended as it would keep two-weapon fighting around the same DPR as a heavy weapon benefiting from Great Weapon Master, or just slightly behind depending on build and mastery choice.
So. Bear with me. One other thing because I've obviously been a bit dense over all this (why on earth did they scatter these rules all over the place?).
I get now that light property + Dual Wielder feat + nick property = 3 attacks.
But, since the extra attack (now part of your main Attack action) from the light property must be with a different light weapon then that means your Bonus Action attack from Dual Wielder must also be with that same light weapon regardless of the fact that Dual Wielder technically allows it to be any non two-handed weapon. Because that's what you have in your other hand.
Unless of course you make use of the more liberal rules on stowing/drawing weapons. Which I think is technically allowed by RAW though it sounds a bit "exploit-y". Is this what other people have meant when they've mentioned "weapon juggling"? (R3sistance mentioned this above?)
So. Bear with me. One other thing because I've obviously been a bit dense over all this (why on earth did they scatter these rules all over the place?).
I get now that light property + Dual Wielder feat + nick property = 3 attacks.
But, since the extra attack (now part of your main Attack action) from the light property must be with a different light weapon then that means your Bonus Action attack from Dual Wielder must also be with that same light weapon regardless of the fact that Dual Wielder technically allows it to be any non two-handed weapon. Because that's what you have in your other hand.
Unless of course you make use of the more liberal rules on stowing/drawing weapons. Which I think is technically allowed by RAW though it sounds a bit "exploit-y". Is this what other people have meant when they've mentioned "weapon juggling"? (R3sistance mentioned this above?)
There have been multiple page long threads dedicated to this very question and with no consensus to that answer, so it's something that'll hopefully be clarified by sage advice or errata at some point in the future.
So. Bear with me. One other thing because I've obviously been a bit dense over all this (why on earth did they scatter these rules all over the place?).
I get now that light property + Dual Wielder feat + nick property = 3 attacks.
But, since the extra attack (now part of your main Attack action) from the light property must be with a different light weapon then that means your Bonus Action attack from Dual Wielder must also be with that same light weapon regardless of the fact that Dual Wielder technically allows it to be any non two-handed weapon. Because that's what you have in your other hand.
Unless of course you make use of the more liberal rules on stowing/drawing weapons. Which I think is technically allowed by RAW though it sounds a bit "exploit-y". Is this what other people have meant when they've mentioned "weapon juggling"? (R3sistance mentioned this above?)
Yes, that's what "Weapon juggling" refers to. If you want to take advantage of Nick, the bonus action attack from the feat and the ability to use a non-light weapon, you need to stow the light weapons after you're done using them and draw the non-light weapon.
Whether that's RAW and RAI is, as others have pointed out, debated in several other threads and we can only hope to get a clarification at some point (they sure seem to be taking their time).
The problem I'm seeing with interperting the Light Property's extra attack as stacking with Enhanced Dual Wielding's extra attack is that in no other place in the game are two identical properties, even from things with different names, permitted to stack. For instance, temporary hit points granted from different sources do not stack, but the most current application overrides the older feature. It could be argued that the phrase, " When you make an attack with a Light weapon as an action, you may make one extra attack as a bonus action later on your turn," that is found in the Light property, should never stack with the phrase, "When you make an attack with a Light weapon as an action, you may make one extra attack as a bonus action later on your turn," found in Dual Wielder's Enhanced Dual Wielder subsection. It should be obvious that DW modifies the Light property's extra attack, and is in no way intended to stack at all.
For instance, if a Fighter, at level one, made one attack with a Handaxe, and made their one extra attack as a bonus action attack with a shortsword due to the Light property, no one would then permit him to make any additonal use of his bonus action; you used it to make your one extra attack, and that's all you can do.
If that same Fighter made that one extra attack as a bonus action with a dagger, and had the Nick mastery of the dagger, he could then do something else with his bonus action, but would not be permitted to make any other extra attacks as a bonus action because Nick expressly prohibits this.
If that Fighter, at level 4, took the Dual Wieder feat, and made his first attack with a Handaxe, and made his second attack with a Battleaxe as a bonus action, he can't use his bonus action to make any other extra attacks, because the phrase, "as a bonus action" is used everywhere else to signify that the bonus action you've taken is all you can do with your bonus action, as I said in the first example.
If that Fighter, at level 4, made his first attack with a Shortsword, and made his second attack with a Scimitar as a part of that attack action, due to it's Nick property, would he then be permitted an additional attack with his bonus action from the Dual Wielder feat's, "When you make an attack with a Light weapon as an action, you may make one extra attack as a bonus action later on your turn," when the Nick property says that you can !ake precisely one extra attack per turn?
The obvious answer is no, as he got one extra attack from the shortsword's light property, and used that one extra attack to use a scimitar with the nick property to make that extra attack as a part of the attack action, and Nick prohibits making any more attacks from the Light property.
If the One Extra Attack as a Bonus Action of both the Light property and the Dual Wielder feat are provoked by an attack with a Light weapon, how can they possibly stack if Nick prohibits making more than one extra attack per turn as a result of making an attack with a Light weapon?
The problem I'm seeing with interperting the Light Property's extra attack as stacking with Enhanced Dual Wielding's extra attack is that in no other place in the game are two identical properties, even from things with different names, permitted to stack. For instance, temporary hit points granted from different sources do not stack, but the most current application overrides the older feature. It could be argued that the phrase, " When you make an attack with a Light weapon as an action, you may make one extra attack as a bonus action later on your turn," that is found in the Light property, should never stack with the phrase, "When you make an attack with a Light weapon as an action, you may make one extra attack as a bonus action later on your turn," found in Dual Wielder's Enhanced Dual Wielder subsection. It should be obvious that DW modifies the Light property's extra attack, and is in no way intended to stack at all.
For instance, if a Fighter, at level one, made one attack with a Handaxe, and made their one extra attack as a bonus action attack with a shortsword due to the Light property, no one would then permit him to make any additonal use of his bonus action; you used it to make your one extra attack, and that's all you can do.
If that same Fighter made that one extra attack as a bonus action with a dagger, and had the Nick mastery of the dagger, he could then do something else with his bonus action, but would not be permitted to make any other extra attacks as a bonus action because Nick expressly prohibits this.
If that Fighter, at level 4, took the Dual Wieder feat, and made his first attack with a Handaxe, and made his second attack with a Battleaxe as a bonus action, he can't use his bonus action to make any other extra attacks, because the phrase, "as a bonus action" is used everywhere else to signify that the bonus action you've taken is all you can do with your bonus action, as I said in the first example.
If that Fighter, at level 4, made his first attack with a Shortsword, and made his second attack with a Scimitar as a part of that attack action, due to it's Nick property, would he then be permitted an additional attack with his bonus action from the Dual Wielder feat's, "When you make an attack with a Light weapon as an action, you may make one extra attack as a bonus action later on your turn," when the Nick property says that you can !ake precisely one extra attack per turn?
The obvious answer is no, as he got one extra attack from the shortsword's light property, and used that one extra attack to use a scimitar with the nick property to make that extra attack as a part of the attack action, and Nick prohibits making any more attacks from the Light property.
If the One Extra Attack as a Bonus Action of both the Light property and the Dual Wielder feat are provoked by an attack with a Light weapon, how can they possibly stack if Nick prohibits making more than one extra attack per turn as a result of making an attack with a Light weapon?
These aren't identical properties, nor do they share the same name, a shield stacks with the shield spell and with the shield of faith spell since these are all different sources, even tho they all do the same thing, increase AC.
Additionally fighter and warlock can get more than 2 attacks per action from extra attack, fighter gets it via normal progression while warlock can get it from invocations of pact of the blade, thirsting blade and devouring blade. But a Paladin's Extra attack does not stack with a Fighter's Extra attack because they are features of the same name and same function.
The light property and the Dual Wielder feat are different sources, thus the principle that applies is that they would indeed stack.
Temporary HP has a specific rule which prevents stacking, so that is an exception as specific beats general.
The problem I'm seeing with interperting the Light Property's extra attack as stacking with Enhanced Dual Wielding's extra attack is that in no other place in the game are two identical properties, even from things with different names, permitted to stack. For instance, temporary hit points granted from different sources do not stack, but the most current application overrides the older feature. It could be argued that the phrase, " When you make an attack with a Light weapon as an action, you may make one extra attack as a bonus action later on your turn," that is found in the Light property, should never stack with the phrase, "When you make an attack with a Light weapon as an action, you may make one extra attack as a bonus action later on your turn," found in Dual Wielder's Enhanced Dual Wielder subsection. It should be obvious that DW modifies the Light property's extra attack, and is in no way intended to stack at all.
It's obvious it doesn't. Compare DW and Nick:
Enhanced Dual Wielding. When you take the Attack action on your turn and attack with a weapon that has the Light property, you can make one extra attack as a Bonus Action later on the same turn with a different weapon,
Nick
When you make the extra attack of the Light property, you can make it as part of the Attack action instead of as a Bonus Action. You can make this extra attack only once per turn.
Nick explicitly refers to "the extra attack of the light property". DW does not.
If you had an ability that said "When you take the Attack action on your turn and attack with a weapon that has the Light property, gain 5 temporary HP", there is no question that this would trigger alongside the Light/Nick additional attack.
But there's no difference between how that hypothetical ability activates and how DW does.
For instance, if a Fighter, at level one, made one attack with a Handaxe, and made their one extra attack as a bonus action attack with a shortsword due to the Light property, no one would then permit him to make any additonal use of his bonus action; you used it to make your one extra attack, and that's all you can do.
True. The bonus action is a resource, and once you've spent it, you can't do so again.
If that same Fighter made that one extra attack as a bonus action with a dagger, and had the Nick mastery of the dagger, he could then do something else with his bonus action, but would not be permitted to make any other extra attacks as a bonus action because Nick expressly prohibits this.
That's not what Nick prohibits. Nick says "You can make this extra attack only once per turn". Which extra attack does "this" refer to? The aforementioned "extra attack of the Light property".
If you had a weapon of speed, you could use its bonus action attack. If you were a multiclassed monk, you could use your bonus action unarmed attack.
And you can use the DW bonus action attack, even though it has a very similar triggering condition.
Now, this is all very fussy and requires nit-picky attention to wording, and that was not a great choice. But it does hold together.
> in no other place in the game are two identical properties, even from things with different names, permitted to stack
Just want to point out that the movement speed reduction from the "Slow" weapon mastery appears to stack with "Ray of Frost" despite not only being identical, but also clearly that's what the mastery property's effect is inspired by.
It's definitely intentional. There's no reason for them to write the TWF Fighting Style in such an open-ended way ("When you make an extra attack as a result of using a weapon that has the Light property...") other than the fact that they need it to work with both the Light property bonus attack and the Dual Wielder bonus attack, and they jumped through hoops to make the latter a different thing. If they didn't need them to stack they could've saved a lot of text by writing Dual Wielder as just "When you make the extra attack of the Light property, you can use a melee weapon that lacks the Light property" and they could've written TWF Style in a much clearer way too.
Re: identical effects stacking, there's a third example of the 10 feet Speed reduction in the Slasher feat. Another example would be Bane and Blade Ward both subtracting 1d4 from attack rolls..
Am I reading it wrong or did they completely remove the mechanic for fighting with two weapons that aren't light? Meaning I can no longer wield 2 longswords, or 2 battle axes, or 2 warhammers, etc...
Is this right or am I missing something? Someone please explain it to me like I'm 5.
It does appear that way. With the Dual Weilder feat, the weapon in your off hand doesn't have to be light, but your main hand weapon does.
Two-weapon fighting got moved to the light property, yes.
This means that you can only use two-weapon fighting with two light weapons, the dual wielder feat ignores the light property for it's bonus action attack (switched for a non-2 handed melee weapon requirement) and there have been long arguments over if "weapon juggling" is valid to take advantage of that and the nick property to get two additional attacks. I don't think we need another discussion about the validity of weapon juggling.
Nick meanwhile moving the bonus action attack to an extra attack on the attack action makes it basically stronger than in 2014, it is improved action economy and then dual wield feat on top gives the ability to make then make another attack with a bonus action.
Dual Wielder feat doesn't give you an extra attack over and above that of the Nick property. Though everyone seems to be making this mistake
Sorry, but you're the one mistaken here.
First, The nick mastery doesn't give you an extra attack, it shifts the extra attack of the light property from a bonus action to an Extra attack
Second, The light property gives the ability to make an extra attack as a bonus action when you make an attack on the attack action with a light weapon and that bonus action must also be with a light weapon.
Third, Dual Wielder Feat gives the ability to make an extra attack as a bonus action when you make an attack on the attack action with a light weapon but that bonus action does not need to be with a light weapon, just a melee weapon that lacks the two-handed property.
In conclusion of these three. Nick affects the bonus action of the light property, Duel Wielder supplies it's own bonus action attack, thus you can make the light action attack using nick on the same action, you can then use the bonus action of Duel Wielder to perform another attack. This is RAW.
Nick
When you make the extra attack of the Light property, you can make it as part of the Attack action instead of as a Bonus Action. You can make this extra attack only once per turn.
It's confusing, but this is borne out by the article that they posted here in D&D Beyond a while back: https://www.dndbeyond.com/posts/1742-your-guide-to-weapon-mastery-in-the-2024-players
It is intended to free up your bonus action to do other stuff. Not give you yet another extra extra attack.
Yes, but Dual Wielder and the Light property are different features. Dual Wielder requires an attack with a weapon with the Light property as a prerequisite, but it is NOT using the bonus action attack granted by the Light property.
This was discussed in another thread not too long ago. You're not missing anything. The devs probably didn't want characters gaining additional uses of certain mastery properties through two-weapon fighting.
If you have the Dual Wielder feat you can use two Light weapons you can make 2 additional attacks as R3sistance points out, or you can use one Light and one non-Light weapon to make only 1 additional attack but still have access to Push, Topple or Sap (which Light weapons never have.)
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Ooooh. You know what....I didn't realise that the bonus action attack of the light weapon property, and the bonus action from the 'Enhanced Dual-wielder' aspect of the feat were two completely separate but overlapping features that both give you an extra attack as a bonus action.
Apologies to R3sistance!
(Though I still wonder if the extra extra attack was the intended effect, but I guess that's irrelevant).
I really wish they had put a section in the book just titled "Summary of Dual-wielding" or something!
The confusion is very understandable! 😊
We all make mistakes, it's fine.
If it's intended, hard to say but from how it affects DPR, it's possible it is intended as it would keep two-weapon fighting around the same DPR as a heavy weapon benefiting from Great Weapon Master, or just slightly behind depending on build and mastery choice.
So. Bear with me. One other thing because I've obviously been a bit dense over all this (why on earth did they scatter these rules all over the place?).
I get now that light property + Dual Wielder feat + nick property = 3 attacks.
But, since the extra attack (now part of your main Attack action) from the light property must be with a different light weapon then that means your Bonus Action attack from Dual Wielder must also be with that same light weapon regardless of the fact that Dual Wielder technically allows it to be any non two-handed weapon. Because that's what you have in your other hand.
Unless of course you make use of the more liberal rules on stowing/drawing weapons. Which I think is technically allowed by RAW though it sounds a bit "exploit-y". Is this what other people have meant when they've mentioned "weapon juggling"? (R3sistance mentioned this above?)
There have been multiple page long threads dedicated to this very question and with no consensus to that answer, so it's something that'll hopefully be clarified by sage advice or errata at some point in the future.
Yes, that's what "Weapon juggling" refers to. If you want to take advantage of Nick, the bonus action attack from the feat and the ability to use a non-light weapon, you need to stow the light weapons after you're done using them and draw the non-light weapon.
Whether that's RAW and RAI is, as others have pointed out, debated in several other threads and we can only hope to get a clarification at some point (they sure seem to be taking their time).
The problem I'm seeing with interperting the Light Property's extra attack as stacking with Enhanced Dual Wielding's extra attack is that in no other place in the game are two identical properties, even from things with different names, permitted to stack. For instance, temporary hit points granted from different sources do not stack, but the most current application overrides the older feature. It could be argued that the phrase, " When you make an attack with a Light weapon as an action, you may make one extra attack as a bonus action later on your turn," that is found in the Light property, should never stack with the phrase, "When you make an attack with a Light weapon as an action, you may make one extra attack as a bonus action later on your turn," found in Dual Wielder's Enhanced Dual Wielder subsection. It should be obvious that DW modifies the Light property's extra attack, and is in no way intended to stack at all.
For instance, if a Fighter, at level one, made one attack with a Handaxe, and made their one extra attack as a bonus action attack with a shortsword due to the Light property, no one would then permit him to make any additonal use of his bonus action; you used it to make your one extra attack, and that's all you can do.
If that same Fighter made that one extra attack as a bonus action with a dagger, and had the Nick mastery of the dagger, he could then do something else with his bonus action, but would not be permitted to make any other extra attacks as a bonus action because Nick expressly prohibits this.
If that Fighter, at level 4, took the Dual Wieder feat, and made his first attack with a Handaxe, and made his second attack with a Battleaxe as a bonus action, he can't use his bonus action to make any other extra attacks, because the phrase, "as a bonus action" is used everywhere else to signify that the bonus action you've taken is all you can do with your bonus action, as I said in the first example.
If that Fighter, at level 4, made his first attack with a Shortsword, and made his second attack with a Scimitar as a part of that attack action, due to it's Nick property, would he then be permitted an additional attack with his bonus action from the Dual Wielder feat's, "When you make an attack with a Light weapon as an action, you may make one extra attack as a bonus action later on your turn," when the Nick property says that you can !ake precisely one extra attack per turn?
The obvious answer is no, as he got one extra attack from the shortsword's light property, and used that one extra attack to use a scimitar with the nick property to make that extra attack as a part of the attack action, and Nick prohibits making any more attacks from the Light property.
If the One Extra Attack as a Bonus Action of both the Light property and the Dual Wielder feat are provoked by an attack with a Light weapon, how can they possibly stack if Nick prohibits making more than one extra attack per turn as a result of making an attack with a Light weapon?
These aren't identical properties, nor do they share the same name, a shield stacks with the shield spell and with the shield of faith spell since these are all different sources, even tho they all do the same thing, increase AC.
Additionally fighter and warlock can get more than 2 attacks per action from extra attack, fighter gets it via normal progression while warlock can get it from invocations of pact of the blade, thirsting blade and devouring blade. But a Paladin's Extra attack does not stack with a Fighter's Extra attack because they are features of the same name and same function.
The light property and the Dual Wielder feat are different sources, thus the principle that applies is that they would indeed stack.
Temporary HP has a specific rule which prevents stacking, so that is an exception as specific beats general.
It's obvious it doesn't. Compare DW and Nick:
Nick explicitly refers to "the extra attack of the light property". DW does not.
If you had an ability that said "When you take the Attack action on your turn and attack with a weapon that has the Light property, gain 5 temporary HP", there is no question that this would trigger alongside the Light/Nick additional attack.
But there's no difference between how that hypothetical ability activates and how DW does.
True. The bonus action is a resource, and once you've spent it, you can't do so again.
That's not what Nick prohibits. Nick says "You can make this extra attack only once per turn". Which extra attack does "this" refer to? The aforementioned "extra attack of the Light property".
If you had a weapon of speed, you could use its bonus action attack. If you were a multiclassed monk, you could use your bonus action unarmed attack.
And you can use the DW bonus action attack, even though it has a very similar triggering condition.
Now, this is all very fussy and requires nit-picky attention to wording, and that was not a great choice. But it does hold together.
I really think we need some clarification from WotC on this one. It's definitely something that could have been explained much better.
Edit: In the last example you quoted, I intended to state that the Nick proprty would prohibit any extra attacks from the Light property.
> in no other place in the game are two identical properties, even from things with different names, permitted to stack
Just want to point out that the movement speed reduction from the "Slow" weapon mastery appears to stack with "Ray of Frost" despite not only being identical, but also clearly that's what the mastery property's effect is inspired by.
It's definitely intentional. There's no reason for them to write the TWF Fighting Style in such an open-ended way ("When you make an extra attack as a result of using a weapon that has the Light property...") other than the fact that they need it to work with both the Light property bonus attack and the Dual Wielder bonus attack, and they jumped through hoops to make the latter a different thing. If they didn't need them to stack they could've saved a lot of text by writing Dual Wielder as just "When you make the extra attack of the Light property, you can use a melee weapon that lacks the Light property" and they could've written TWF Style in a much clearer way too.
Re: identical effects stacking, there's a third example of the 10 feet Speed reduction in the Slasher feat. Another example would be Bane and Blade Ward both subtracting 1d4 from attack rolls..
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