>>45827775Mega Rayquaza would have an actual check:
>252 SpA Mewtwo Blizzard vs. 0 HP / 0 SpD Rayquaza-Mega in Strong Winds: 272-322 (77.4 - 91.7%) -- guaranteed OHKO after Stealth Rock>252 SpA Mewtwo Blizzard vs. 0 HP / 0 SpD Rayquaza-Mega in Strong Winds on a critical hit: 408-482 (116.2 - 137.3%) -- guaranteed OHKO(Keep in mind that Mewtwo has a 25% critical hit rate)
And in return:
252+ Atk Choice Band Rayquaza-Mega Dragon Ascent vs. 252 HP / 252 Def Mewtwo: 349-412 (83.8 - 99%) -- guaranteed 2HKO
yes, you read that right, Mega ray would be a single % point away from OHKOing a gen 1 mewtwo, of course, this goes up to a 75% chance to ohko after rocks but still, after a dragon ascent all of mewtwo's blizzards ohko