>>21711100+1 252 Atk Aerilate Salamence Return vs. 252 HP / 252+ Def Aurorus: 156-183 (34.6 - 40.6%) -- 0.4% chance to 2HKO after Stealth Rock and Leftovers recovery
You forgot to put a +Def nature anon.
Aurorus counters every set without EQ, which is pretty rare from what I've seen.
However, the very fact you need to run PHYSICALLY DEFENSIVE AURORUS of all things only cements how retardedly centralizing M-Mence is.