>>14035012By his base stats, sure. But there's no reason to say that X form won't swap the stats out and have a comparable physical attack to Y's special.
The only issue is the movepool.
>>14037206If mewtwo gets a decent physical dark/bug/ghost move then X would win 1v1 easily because he'll almost certainly be more defensive, and shadow ball is the only thing Y can hit him with.
Shadow Ball sucks. No one is going to waste one of mewtwo's slots on shadow ball.
