Board Thread:General Discussion/@comment-26873003-20150809191532/@comment-26216483-20150813013452

It's probably safe to assume that Judgement relies fully on granting others wishes, or else he could just make a clay zombie army and attack Polnareff without pretending to be a Genie or even just make himself rich and not be an assassin for hire.

For Ebony Devil the wiki page was worded incorrectly. In the manga Devo states "Ebony Devil activates when I am injured! And it grows more powerful the more hatred I have for my opponent"

That's never explained. It happens a lot throughout the series where an enemy Stand is shown off breifly with a weird ability, but then its actual ability has nothing to do with it.