Time to whip out an old favorite, back from the depths of BW UU!
Sableye @ Leftovers
Ability: Prankster
EVs: 252 HP / 252 Def / 4 SpD
Bold Nature
- Will-O-Wisp
- Recover
- Snarl
- Foul Play
252 Atk Choice Band Mold Breaker Sawk Earthquake vs. 252 HP / 252+ Def Sableye: 137-162 (45 - 53.2%) -- 0.4% chance to 2HKO after Leftovers recovery
252 Atk Choice Band Mold Breaker Sawk Knock Off (97.5 BP) vs. 252 HP / 252+ Def Sableye: 134-158 (44 - 51.9%) -- 14.1% chance to 2HKO
252 Atk Choice Band Mold Breaker burned Sawk Knock Off (97.5 BP) vs. 252 HP / 252+ Def Sableye: 67-79 (22 - 25.9%) -- 4.2% chance to 4HKO
252 Atk Choice Band Mold Breaker burned Sawk Earthquake vs. 252 HP / 252+ Def Sableye: 68-81 (22.3 - 26.6%) -- possible 5HKO after Leftovers recovery
Personally, I always liked SpD Sableye better, with Taunt over Snarl, but that's just me. Anyways, you can switch in, be fat, and eventually Sawk will die to burn damage. If someone ever tells you that this isn't the most hilarious mon to use, they're lying.