Board Thread:Versus Battles/@comment-27874088-20180221071526/@comment-11390223-20180221230034

No idea why you said that like that, it doesn't match with the comment. Plus, see full comment post edit.

Also, Red seemingly has baseless Reactive Evolution, which makes one more resistant. Meanwhile, if Ouro's is harmed, he will "immediately make sure to evolve to be practically immune to whatever harmed it in the first place", with even powerful abilities being subject to this. Thus Ouro's has greater RE.