Pyukumuku @ Leftovers
Ability: Unaware
EVs: 252 HP / 252 Def / 4 SpD
Bold Nature
- Toxic
- Soak
- Recover
- Counter / Protect / Gastro Acid / Block

Additional move options: Reflect, Light Screen
Additional item options: Light Clay
Notes: Counter can end a sweep and force out Pokemon like Ursaring.
Protect can scout and stall for wearing down opposing Pokemon and stalling PP, gives extra recovery, and helps with Z moves.
Gastro Acid circumvents problematic abilities on switch-ins like Guts and Magic Guard.
Block allows Pyukumuku to trap Pokemon and force them to take constant toxic damage.