Benevolence (Ho-Oh) @ Shed Shell  
Ability: Magic Bounce  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD  
Sassy Nature  
IVs: 30 HP / 0 Spe  
- Defog  
- Circle Throw  
- Heal Order  
- Baton Pass  

Pinnacle (Mewtwo-Mega-X) @ Focus Sash  
Ability: Huge Power  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe  
Adamant Nature  
- Plasma Fists  
- V-create  
- Sunsteel Strike  
- Ice Shard  

Serenade (Meloetta) @ Darkinium Z  
Ability: Wonder Guard  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD  
Sassy Nature  
IVs: 0 Spe  
- Magic Coat  
- Parting Shot  
- Spectral Thief  
- Shore Up  

Terror (Gengar-Mega) @ Focus Sash  
Ability: No Guard  
EVs: 252 HP / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Sludge Bomb  
- Focus Blast  
- Fissure  
- Moongeist Beam  

Brute (Slaking) @ Lum Berry  
Ability: Huge Power  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe  
Adamant Nature  
- Pursuit  
- Extreme Speed  
- Fake Out  
- Sunsteel Strike  

Undertow (Swampert-Mega) @ Safety Goggles  
Ability: Wonder Guard  
EVs: 252 HP / 252 Def / 252 SpA / 252 SpD  
Relaxed Nature  
IVs: 0 Atk / 0 Spe  
- Lava Plume  
- Stealth Rock  
- Baton Pass  
- Roost