That feels a pretty weak spell. And a legendary should have a unique third trait.
Edit: any spell that uses a troop’s colours currently (eg Celestasia) picks one at random, which is how I assumed yours would work. If the intention is to remove all colours of an enemy you should say.
I did mean all thats why I said colors I know most say color so I added an SSSSSsssss :P. Also ya it was place holder for the moment on the trait. I think this card would be a good punisher for mythic decks and decks with prismatic cards. Also I wanted to gear him to gain massive life as a survival tool. If he gets consumed himself anger and happiness…