The compendium listing for Demogorgon (and other demon lords) in Mordenkainen's Tome of Foes (link) says it has immunity to "bludgeoning, piercing, and slashing that is nonmagical". This is what the actual book (page 144) says its immunity is.
The monster listing for Demogorgon (link) says it has immunity to "Bludgeoning, Piercing, and Slashing from Nonmagical Attacks". This is not correct, and the difference is mechanically significant for things such as falling damage. This should be corrected.
Additionally, I would like to give homebrew creations immunity, resistance, or vulnerability to "bludgeoning, piercing, and slashing that is nonmagical" damage. Correcting the demon lords would probably add it to the monster builder, so that'd probably meet this desire as well.
The compendium listing for Demogorgon (and other demon lords) in Mordenkainen's Tome of Foes (link) says it has immunity to "bludgeoning, piercing, and slashing that is nonmagical". This is what the actual book (page 144) says its immunity is.
The monster listing for Demogorgon (link) says it has immunity to "Bludgeoning, Piercing, and Slashing from Nonmagical Attacks". This is not correct, and the difference is mechanically significant for things such as falling damage. This should be corrected.
Additionally, I would like to give homebrew creations immunity, resistance, or vulnerability to "bludgeoning, piercing, and slashing that is nonmagical" damage. Correcting the demon lords would probably add it to the monster builder, so that'd probably meet this desire as well.
Thanks!
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There are other monsters with resistance to specifically non-magical attacks, so they will likely actually need to add a new option to fix this.