Instead of making mewtwo only belong to 1 person at a time, why not just nerf him so everyone can have him? I've beaten mewtwo with magikarp before so I don't even think he's OP but others do. I hope the legendary birds won't have this same wierd rule, because most people wouldn't like that. You've already made a lot of people mad due to the constant nerfs/changes on breeding and now this...Please rethink this rule on legendaries,