>>52762867252+ Atk Tough Claws Metagross-Mega Meteor Mash vs. 252 HP / 216 Def Xerneas: 384-452 (84.2 - 99.1%) -- guaranteed 2HKO
252+ Atk Life Orb Mold Breaker Tinkaton Gigaton Hammer vs. 252 HP / 216 Def Xerneas: 439-517 (96.2 - 113.3%) -- 75% chance to OHKO
This is all theory but still proves Tinkaton *can* hit
Still a travesty that Gigaton Hammer doesn't ignore Steel resistance