Hammerwiki:Corporeal

Corporeal is a resistance against damage that can result from special attacks involving corporeal magic. This is different from regular physical damage, and tends to represent acid, concussive force, extreme heat, and so forth.

Zealot spells and Engineer special attacks deal exclusively Corporeal damage, as do many Bright Wizard and Sorcerer spells. Black Orcs, Shadow Warriors, and Squig Herders with specific career masteries can get Corporeal effects.