Chinchou Gen5

Chinchou @ Eviolite
Ability: Volt Absorb
Happiness: 0
EVs: 248 HP / 8 Def / 252 SpD
Sassy Nature
IVs: 0 Atk / 0 Spe
- Rest
- Sleep Talk
- Scald
- Volt Switch

The minimum Speed might seem odd, but it lets Chinchou outslow Klang. This lets you see what Klang and other setup sweepers are doing so you can switch appropriately, etc...