Ghosts

Ghosts are incorporeal spirits, a form of undead.

As well as being generally immune to physical attacks, except when possessing an ally, they can also absorb the bolt of Great Sacrifice, and if directly hit will be left with 1 health, no matter how powerful the magical bolt was.

Melee attacks with non-magickal weapons normally pass straight through ghosts. However when Magick Boosting Equipment is worn it adds a magick component to any attack, meaning even Unarmed Combat and all other melee attacks will strike the ghost, though likely not be powerful enough to damage it. Thrown items will strike ghosts even if they cannot damage them.