This is a character who wants to destroy everything and everyone in the story, and is suddenly in a position to do so (on a small or large scale); but in contrast to the Ax Crazy Omnicidal Maniac, he/she has some plausible, outright tragic reason to do so. In some cases, the other characters outright sympathize with this one (whether or not the audience does too is out of the equation here), all [...] [tvtropes.org]