Necrozma-Dusk-Mane @ Solganium Z  
Ability: Huge Power  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe  
Adamant Nature  
- Shell Smash  
- Sunsteel Strike  
- Precipice Blades  
- Beat Up  

Groudon-Primal @ Focus Sash  
Ability: Magic Bounce  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe  
Adamant Nature  
- Shell Smash  
- Bonemerang  
- Sunsteel Strike  
- Ice Punch  

Muk-Alola @ Air Balloon  
Ability: Wonder Guard  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD  
Relaxed Nature  
IVs: 0 Spe  
- Recover  
- Baton Pass  
- Defog  
- Knock Off  

Steelix-Mega @ Safety Goggles  
Ability: Fur Coat  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpA / 252 SpD  
Sassy Nature  
IVs: 0 Spe  
- Recover  
- Volt Switch  
- Core Enforcer  
- Anchor Shot  

Mewtwo-Mega-X @ Focus Sash  
Ability: Huge Power  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe  
Adamant Nature  
- Photon Geyser  
- Thousand Arrows  
- Play Rough  
- Light That Burns the Sky  

Blissey @ Choice Scarf  
Ability: Imposter  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe  
Jolly Nature  
- Whirlwind  
- U-turn  
- Trick  
- Spectral Thief