Noun. For those of you who aren't particularly familiar with the word "capmicavesta", it's a person similar to one chosen to become immortal by a wizard or a vampire. The only difference is that a capmicavesta has been graced by BOTH powers, and is not only a wizard or a vampire but both at the same time hoarding wonderous powers and is a beacon for all truth in the fantasy world.
Edward Cullen and Harry Potter handed on their powers to two lucky human beings. Those two can now grace anyone else in the entire universe with this power, but only a select few.
Mike: Dude, that girl put a spell on me and then bit me!
Martho: Mike, I heard that girl was a freak, but maybe she's just a capmicavesta!