Sableye @ Leftovers
Ability: Prankster
EVs: 248 HP / 252 Def / 8 SpD
Impish Nature
- Taunt
- Will-O-Wisp
- Recover
- Knock Off
Prankster and immunity to everything except Knock Off makes Sableye a pretty decent
check counter. Priority Taunt stops Zang from drumming. Even if it's already drummed, Sableye survives Knock Off after the priority burn. All subsequent Knock Off hits do less than 50%, so you can just recover until it's dead or you feel comfortable enough to retaliate with your own Knock Off.
Even if for some reason you've let Sabeleye get worn down prior to Zangoose dropping or it gets a lucky crit, the burn effectively neuters the mon so that anything decently bulky can finish it off.
(With item)
+6 252+ Atk burned Zangoose Knock Off (97.5 BP) vs. 248 HP / 252+ Def Sableye: 183-216 (60.3 - 71.2%) -- guaranteed 2HKO after Stealth Rock and Leftovers recovery
(Without item)
+6 252+ Atk burned Zangoose Knock Off vs. 248 HP / 252+ Def Sableye: 123-145 (40.5 - 47.8%) -- guaranteed 3HKO