>>34533227This, Rock Head Head Smash sounds good until you realise that not taking recoil is pointless when you die in one hit to anything you don't kill.
Reckless ensures that only the absolute sturdiest physical walls live long enough to strike you back.
252 Atk Life Orb Reckless Rampardos Head Smash vs. 252 HP / 252+ Def Toxapex: 243-289 (79.9 - 95%) -- guaranteed 2HKO