I'm am really puzzled by this one. When using The Wicked Avatar, my opponent played Copycat. The Wicked Avatar's effect means it gains 100 atk as Copycat has 0. But Copycat then copies Wicked Avatars atk. But Wicked Avatar then gains another 100 on top of Copycats, but then Copycat copies the same atk; and so on. Does this carry on in an indefinite loop? Help would be appreciated.