Okidogi @ Assault Vest
Ability: Toxic Chain
Tera Type: Dark
EVs: 124 HP / 176 Atk / 96 Def / 112 SpD
Careful Nature
- Drain Punch
- Poison Jab/Gunk Shot
- Knock Off
- Iron Head
Drain Punch and Poison Jab/Gunk Shot are STAB, while Knock Off and Iron Head are good coverage moves. I prefer Poison Jab because Gunk Shot's accuracy is somewhat unreliable, but you can use Gunk Shot instead if you want more power instead of more accuracy. Tera Dark switches the 4x weakness of psychic into 0x, and Assault Vest insures that you can take a few more special hits.