Quote from Dementoid >>

rules-glossary

Emanation [Area of Effect]

An Emanation is an area of effect that extends in straight lines from a creature or an object in all directions. The effect that creates an Emanation specifies the distance it extends.

An Emanation moves with the creature or object that is its origin unless it is an instantaneous or a stationary effect.

An Emanation’s origin (creature or object) isn’t included in the area of effect unless its creator decides otherwise.

 

So, I don't think that any spells/AOE would be able to target anything inside of an antimagic field, nor would anything inside of an antimagic field be able to target anything outside. However, wouldn't the caster of the Antimagic Field spell be able to cast spells on themselves? If an Emanation moves with the creature that is its origin, and an Emanation's origin (the caster) isn't included in the area of effect by default, does that mean that any spell that never attempts to pass through the field would work (such as Shield)? I still don't think spells with a range of Touch would work on either party, as no matter how close you get to a target, you can't literally merge into their being, but I think RAW, spells with a range of Self should work!

Quote from Kineteken >>

Would Antimagic Field mess with an Soulknife rogue abilitiy to produce a psychic blade?
I don't see where it says psychic blade is created by magic or even takes a magic action.

Psychic blades are explicitly magical. They will not function within an anti-magic field.

You can manifest shimmering blades of psychic energy. Whenever you take the Attack action or make an Opportunity Attack, you can manifest a Psychic Blade in your free hand and make the attack with that blade. The magic blade has the following traits:

Quote from Dementoid >>

From the class description in 2024 PHB:

"Druids belong to ancient orders that call on the forces of nature. Harnessing the magic of animals, plants, and the four elements, Druids heal, transform into animals, and wield elemental destruction."

That lists the transformation into animals as magical, so I would still have it affected. 

 

The class ability does not say that this is a magical effect.
The power of nature allows you to assume the form of an animal.

But in the subclass of the moon circle it is said:
You can channel lunar magic when you assume a Wild Shape form, granting you the benefits below.

So the basic wild shape will not be affected by antimagic field or detect magic.

Guys, this is really, really stretching it. By this logic, things like 5e Divine Smite and Lay On Hands can still function under Anti-Magic Field, and I'm pretty sure RAI is supposed to turn the area inside it completely magicless, not say "You can't use spells, but you can make your sword erupt in flashes of light, because it's not magic unless it says so".

Does this necessarily end Concentration? Say you caste Haste on someone, you get caught in this, but the target isn't—does Haste end? By my reading, the worst case is that Haste is merely suppressed but doesn't technically end to trigger the lethargy. However, it seems more likely that this spell wouldn't do anything in that case, RAW.

Quote from Dementoid >>

If I'm reading this right, the caster of the antimagic field can exclude themselves and cast spells from within it on other targets. Then, other casters can target them. But they could not be fireballed, and melee inside the field would not have magic weapons. So, a lich would render themselves immune to melee damage but be able to cast spells on those outside the field. 

The lich could still attack with their weapon and use the magical properties of it. 

 You can argue the lich could exclude themselves RAW, but if they did they wouldn't be within the aura according to RAW, and as such they could still be affected by spells, magic item effects, and the like as long as the caster or magic item is also outside the Aura. And since the lich's magic items aren't part of the lich, their effects would be supressed (there could be some exceptions where they're like body parts that have to be grafted on or smth, but that's not a thing for most magic items).

Even AOEs would affect the Lich in this case according to RAW, as long as the AOE is either targeted to originate from the Lich's location, or has enough AoE to reach the lich without originating within the aura, as the spell says nothing about completely stopping AOEs from projecting past it, just that their effects are supressed where they overlap, and if the lich excludes themself from the Emanation, their location is not overlapped by the Antimagic Field.

So the Lich would be using their concentration to disable specifically magical effects the players would use while within 10 feet of the lich.

Magical weapons would also still work to hit the Lich bc both the lich itself and the part digging into the lich would not be in the aura.

Sure, these are bad faith RAW interpretations, but IMO so is allowing the caster to exclude themself. So if you're gonna make bad faith RAW rules interpretations, don't be surprised your the players do the same back.

Probably better to just homebrew a really physically jacked lich and make them have the Emanation include themself, anyway.

Quote from PurplBanana >>

Does this necessarily end Concentration? Say you caste Haste on someone, you get caught in this, but the target isn't—does Haste end? By my reading, the worst case is that Haste is merely suppressed but doesn't technically end to trigger the lethargy. However, it seems more likely that this spell wouldn't do anything in that case, RAW.

 It shouldn't make casters drop concentration if they're in it, since it doesn't mention that at all. But for your example, if the creature being buffed by haste is in the zone, they don't get the benefits of Haste while within it, but also don't trigger the lethargy.

The DM may also rule that if the caster enters the Antimagic Field, the buffed creature doesn't get the buffs from haste for as long as the caster is still within the field, though I don't think that would be RAW.