>>14219454Calculated it this way. Regular OU Azumarill, which is investment on HP.
252 Atk Choice Band Charizard ThunderPunch vs. 212 HP / 0 Def Azumarill: 294-348 (74.61 - 88.32%) -- guaranteed 2HKO
Assumed Jolly since this thing will need all the speed it can get, and Choice Band for max damage, although it won't necessarily be its best set.
130 base attack, obviously.
Fighting back, Azumarill's Waterfall does around 80% against 110 defense Charizard Fire/Dragon. Which then could die to Aqua Jet, I guess.
Either way, these two can go pretty even against each other, counting hazards and stuff, unless Tough Claws ensures it dies.