Muk-Alola @ Air Balloon  
Ability: Wonder Guard  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpA / 252 SpD  
Sassy Nature  
IVs: 0 Spe  
- Shore Up  
- Stealth Rock  
- Circle Throw  
- U-turn  

Slowbro-Mega @ Shed Shell  
Ability: Wonder Guard  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpA / 252 SpD  
Relaxed Nature  
IVs: 0 Spe  
- Magic Coat  
- Strength Sap  
- Defog  
- U-turn  

Chansey (F) @ Eviolite  
Ability: Imposter  
EVs: 252 HP / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Bold Nature  
IVs: 0 Atk  
- Shore Up  
- Defog  
- Whirlwind  
- Perish Song  

Mewtwo-Mega-Y @ Life Orb  
Ability: Protean  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Hasty Nature  
- Moongeist Beam  
- Sludge Wave  
- Plasma Fists  
- Moonblast  

Slaking @ Leppa Berry  
Ability: Harvest  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Adamant Nature  
- Searing Sunraze Smash  
- Extreme Evoboost  
- Shore Up  
- Substitute  

Blissey (F) @ Choice Scarf  
Ability: Imposter  
EVs: 252 HP / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Calm Nature  
IVs: 0 Atk  
- Shore Up  
- Baton Pass  
- Whirlwind  
- Perish Song