Talk:Magic Duel/@comment-4826523-20130914202611/@comment-1276314-20130915114500

Either - she was permanently corrupted - the corruption was in effect for some time after taking Amulet off.

Whether it's permanent or temporary is difficult to tell although she did totally give up after Twilight won so embarrasingly (on Trixie's side). I'd say it's both, Twilight beat her so 100-1 that if she had tried to keep up the looks even the fences would had laughed.