Thats a neat boss for a low level party with a fun backstory. Gonna steal it. Thanks!

Quote from Mastikator >>

Fun story: I gave this item to my players in a one-shot, they thought it "looked ugly" and put it on a skeleton the necromancer was controlling. They then left it in the dungeon. There is now an invulnerable skeleton in that dungeon.

 Thats a fun boss for a low level party with a fun backstory. Gonna steal it, thanks!

If only the wording of this item wasn't so ambiguous... it would be much better.

This armor surely does protect you from nonmagical BPS... but is elemental damage nonmagical? It's not specified, and doesn't sound like that. Having fire resistance means you resist both magical and nonmagical. Having resistance to all BPS is barbarian stuff. Having resistance to nonmagical BPS is fine, but Christ... just state it clearly, don't be vague with terms... 

1. Dragon's breath is nonmagical. An effect is only magical if it's a spell, calls itself magic, is a magic item, or is a spell attack (I may be missing some, but I think I communicated the point.) Acid rain, dragon breath, stomach acid, lava, being in a star (if the setting has nonmagical stars), falling, severe cold, frigid water, a mountain falling on you from space, natural lightning strikes, damage from ending your turn inside an object with incorporeal movement (see ghosts), laser pistols, antimatter rifles, etc. are all nonmagical. Any damage type can be magical, and any damage type can be nonmagical.

2. That said, a dragon should have some magic items at its disposal and/or magic minions and/or its own spellcasting.

3. The real (by which I mean funnest and coolest) power of this spell is as a space suit. Combine with necklace of adaptation so that you can breathe, then gain immunity to the cosmic rays, lack of ability to regulate your temperature without an atmosphere to siphon the heat your body produces, and deadly cold of space (the last two are contradictory, but I don't have the energy to research what actually happens.) There aren't rules (that I'm aware of) for vacuum and cosmic ray exposure, but I'd say it's reasonable that the exhaustion you'd take from cosmic rays would be thwarted if you had immunity to radiant and necrotic (or possibly just resistance to one of them, but deciding that isn't necessary here), just as exhaustion from heat and cold are negated by resistance to fire and cold, respectively. I'd also say it's reasonable that this would negate the damage and/or exhaustion and/or permanent blindness from being surrounded by a vacuum even though I'm not sure what a vacuum would do mechanically. Bonus points: it also makes you immune to micrometeors.

Edit:

1. Fixed name of necklace of adaptation.

2. Of course, the space suit thing is setting specific. But it's still really cool.

3. The space suit idea was sparked by OriHarpy's suggestion of using a necklace of adaptation to go on a space walk on the necklace of adaptation's page. (I linked their account with the intent of still maintaining who I got the idea from if they happen to change their username; does anyone know if that's possible and, if so, if that precaution will work?)

cool

As a DM, I might rule that a dragon is ancient and mystical enough that it might have naturally magical breath. If a dragon has been steeped in magic for millennia, then it stands to reason that magic would become part of it. Just saying.

eggactly

Quote from Sangheilioz >>

You have resistance to nonmagical damage while you wear this armor. Additionally, you can use an action to make yourself immune to nonmagical damage for 10 minutes or until you are no longer wearing the armor. Once this special action is used, it can't be used again until the next dawn.

 

So... could you use this action to prevent yourself from taking falling damage? The description doesn't match the notes.

 Yes! There are monsters with this trait too, such as Iron Golems and Lycanthropes. My DM did a good job of illustrating this, when a werewolf got yeeted off a building, and we saw its bones break, and sickeningly knit themselves back together.

so good for killing a tarrasque

Elemental damage is not bludgeoning, piercing, or slashing, it's [element] type.

So if you take non-magical fire damage, you take all the damage, because it's not BPS.

Think of it as two consecutive things that must both be true:

-it must be non-magical, or it bypasses the armor;

-it must be BPS, or it bypasses the armor.

Yes, but it would've been clearer if they just said "you gain resistance to bludgeoning, piercing and slashing damage from nonmagical weapons" instead of saying "nonmagical damage". Would've made it far more simple to understand, imo. 🙄

*Party tries to assassinate the king, who's only slightly stronger then a CR 3 knight. 

* Suprised Pickachu face that the richest & most well-protected dude in the kingdom is wearing this with some +3 gear once they finally get through the guards