Originally posted by Blax_HydraliskIf a character has never displayed such an ability, there's no reason to believe that he or she possesses it. It's not impossible at all.
And your problem is that you're basing everything only on what you've seen, which makes it impossible to debate a completely hypothetical match. Debate using more logical deductions.
Stating that Mewtwo can simply make Ness's head explode when he has never shown that he could inflict such damage on another psychic, or anyone for that matter, isn't exactly sound debating.
Turning Ness to stone (with Mew's help, no less) is more acceptable.