Board Thread:General Discussion/@comment-4636650-20161205141818/@comment-24674051-20170123165626

Agreed. And also avoid the born psychopath, which they used with Cruella. That was fresh with her (and likable in it's own way), but that really is a one-time use.

Honestly, a good reason for the black heart might be conflict between her and Blue, and that conflict drove her to abandon the Fairy morals.