Greedent @ Aguav Berry
Ability: Cheek Pouch
EVs: 252 HP / 252 Atk / 4 Def
IVs: 0 Spe
- Belly Drum
- Super Fang
- Gyro Ball
Okay, okay, so hear me out. 0 speed Iv because of gyro ball, because Greedent won't be outspeeding anything anyway, so 0 speed IVs increases gyro ball's strength.
Belly drum and substitute are obvious, sub is for protection while you belly drum, because Greedent is so tanky that the substitute might actually take 2 hits to break.
Alternatively, you good use the substitute just as an extra layer of defense.
After you've belly drummed and subbed, Greedent will eat it's aguav berry, restoring 33% of it's hp, cheek pouch stacks with this, which gives you a whopping 66% regen.
Super fang is so you can lower you're target's hp if you think that gyro ball won't OHKO, although you could swap it out for any other decent move.
And that is my set, because Greedent is funny.