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In my campaign, I've made some apparition type creatures which have immunities to force and magical damage.

Some of my party has Weapons Considered Magic For The Purpose Of Overcoming Resistances (WCMFTPOOR). Would these creatures, by proxy, then be immune to a WCMFTPOOR, and all damage from it?

The way it's worded, it seems like the damage is magical, but the weapon is not, so I'm thinking that the creature would be immune. Is this the case? I would like a RAW answer if possible.

2 examples. (source)

One player has a Kensei weapon:

Magic Kensei Weapons. Your attacks with your kensei weapons count as magical for the purpose of overcoming resistance and immunity to nonmagical attacks and damage.

Another has the arcane archer arrows:

Magic Arrow: When you choose this archetype at 3rd level, you gain the ability to infuse arrows with magic. Whenever you fire a nonmagical arrow from a shortbow or longbow, you can make it a magic arrow, with a +1 bonus to the attack and damage rolls. The magic fades from the arrow immediately after it hits or misses its target

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closed as unclear what you're asking by Zeiss Ikon, user17995, T.J.L., Thomas Jacobs, Oblivious Sage Aug 1 '17 at 18:01

Please clarify your specific problem or add additional details to highlight exactly what you need. As it's currently written, it’s hard to tell exactly what you're asking. See the How to Ask page for help clarifying this question. If this question can be reworded to fit the rules in the help center, please edit the question.

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    \$\begingroup\$ Magical damage immunity is in the books? How are you defining "magical damage?" Is it damage from a magical source? \$\endgroup\$ – NautArch Aug 1 '17 at 16:13
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    \$\begingroup\$ I don't think this question is answerable--I did a quick search and did not find any monsters that are immune to all magic. Because your full immunity to all magic damage isn't in the rules, you have to decide how it works in your homebrew. \$\endgroup\$ – Icyfire Aug 1 '17 at 16:35
  • \$\begingroup\$ @Icyfire I thought it was answerable. Granted, the Kensei is a UA, but it does "magical damage" just as the Monk's martial arts damage does at level 6. \$\endgroup\$ – KorvinStarmast Aug 1 '17 at 18:16
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    \$\begingroup\$ @KorvinStarmast, it's not the "magical damage" part that's at issue. There's no RAW 100% immunity to magic damage, and no precedent for dealing with that in the books. Because that ability is homebrew, it's up to the homebrewer to decide how it works. Your answer gives some context to make that decision, but the direct answer is "this is not addressed in the books" IMO. \$\endgroup\$ – Icyfire Aug 1 '17 at 18:31
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    \$\begingroup\$ @KorvinStarmast But the question still remains, how can there be any authoritative answer to “how should my homebrew monster work?” We usually close those kinds of questions. RAW or not is a complete red herring here, and entirely irrelevant. \$\endgroup\$ – KRyan Aug 1 '17 at 21:04
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"Magical" isn't technically a damage type.

As presented, the weapons still do damage but lose the magical bonus to that damage. If you want RAW support, that depends on whether you are treating the apparition as possessing something like an antimagic field innately.1

As worded, "magical" is a modification (enhancement) to a weapon damage type, typically slashing, piercing, or bludgeoning. You see it listed in an immunity or resistance description in the Monster Manual, most often referred to by its absence: nonmagical weapons (or damage types) don't harm creature X, or mundane weapons (or damage types) are resisted by creature X.

Examples

  1. Werewolf:

    Damage Immunities bludgeoning, piercing, and slashing from nonmagical attacks not made with silvered weapons

  2. Deva

    Damage Resistances radiant; bludgeoning, piercing, and slashing from nonmagical attacks

If the magic goes away from the weapon it still does slashing, piercing, or bludgeoning damage. (It's a fair ruling that the +1 or +2 to hit/to damage goes away, since that's magical, in the case that you are making for your custom apparitions).

Is a magical weapon a "spell effect?"

If you treat these apparitions as carrying around, or having an innate, antimagic field(AMF) -- confined to themselves -- you will be consistent with the rules on AMF to rule that the magic on the weapon won't cause the apparition harm. (The +1 or +2 bonus, etc).

Magic Items. The properties and powers of magic items are suppressed in the sphere. For example, a +1 longsword in the sphere functions as a non-magical longsword. A magic weapon’s properties and powers are suppressed if it is used against a target in the sphere or wielded by an attacker in the sphere. If a magic weapon or a piece of magic ammunition fully leaves the sphere (for example, if you fire a magic arrow or throw a magic spear at a target outside the sphere), the magic of the item ceases to be suppressed as soon as it exits. (AMF (8th level) spell description, SRD V_5.1)

What type of damage is "magical?"

Damage types listed in the PHB:

Damage Types Different attacks, damaging spells, and other harmful effects deal different types of damage. Damage types have no rules of their own, but other rules, such as damage resistance, rely on the types.

Acid. Bludgeoning. Cold. Fire. Force. (Force is pure magical energy focused into a damaging form). Lightning. Necrotic. Piercing. Poison. Psychic. Radiant. Slashing. Thunder.

Here's a sticky point. Fire damage is fire damage, regardless of whether you got hit with red dragon's breath, a fire ball, or got pushed into a pool of lava. Likewise with lightning damage.

You can (if you like) make distinctions between magical and mundane.

Since you are the DM, you can choose to make a distinction in your world between magically created (artificial?) damage (other than Force, which is pure magic) and mundane damage if you so choose. That's up to you. If you do this, make sure to advise your players that is how it works in this world. (And you need to keep track of this ...) While I think it is a needless complication (more to keep track of for marginal value) you can do it if you like that sort of thing.


1 While I've always thought that a magical creature possessing an antimagic field or magical resistance to be a paradox, and inherently contradictory, that's a personal opinion not shared by D&D designers. Demons as far back as OD&D Supp 3, Eldritch Wizardry, had varying levels of magic resistance.

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