>>21327581252 Atk Jolly M Mom's Return on a Mega Gallade with 0 IV, 0 EV HP, and 252 Def.
Mega Gallade survives w/ 2HP.
Mega Gallade Close Combats Mega Mom. 4 HP, 0 Def.
>315 damage>OHKOs almost twice over.Mega Gallade's HP IVs are at their minimum, and if you swap the HP & Def EVs you'll get a similar result. If your HP and Def IVs are maxed, you might even survive a crit, too.
