i beat devin with this

Azumarill @ Starf Berry
Ability: Sap Sipper
EVs: 244 HP / 252 Atk / 12 SpD
Adamant Nature
- Substitute
- Play Rough
- Waterfall
- Aqua Jet

Klefki @ Chesto Berry
Ability: Magician
EVs: 248 HP / 252 Atk / 8 SpD
Adamant Nature
- Facade
- Return
- Play Rough
- Rest

Granbull @ Assault Vest
Ability: Intimidate
EVs: 248 HP / 252 Atk / 8 SpD
Adamant Nature
- Close Combat
- Play Rough
- Stone Edge
- Earthquake

Togetic @ Eviolite
Ability: Serene Grace
EVs: 248 HP / 8 Atk / 252 SpD
Careful Nature
- Body Slam
- Wish
- Baton Pass
- Heal Bell

Dedenne @ Petaya Berry
Ability: Cheek Pouch
EVs: 4 HP / 252 SpA / 252 Spe
Hasty Nature
- Nuzzle
- Substitute
- Volt Switch
- Thunderbolt

Mr. Mime @ Expert Belt
Ability: Filter
EVs: 252 SpA / 4 SpD / 252 Spe
Timid Nature
- Dazzling Gleam
- Energy Ball
- Psyshock
- Focus Blast