Mewtwo-Mega-X @ Leppa Berry  
Ability: Huge Power  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Naughty Nature  
- Light That Burns the Sky  
- Sunsteel Strike  
- Moongeist Beam  
- Close Combat  

Groudon-Primal @ Choice Scarf  
Ability: Shadow Tag  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe  
Jolly Nature  
- Let's Snuggle Forever  
- Fire Lash  
- First Impression  
- Thousand Arrows  

Solgaleo @ Leftovers  
Ability: Fur Coat  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe  
Impish Nature  
- U-turn  
- Stealth Rock  
- Spectral Thief  
- Shore Up  

Arceus @ Shed Shell  
Ability: Wonder Guard  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe  
Impish Nature  
IVs: 2 Spe  
- Will-O-Wisp  
- Spectral Thief  
- Defog  
- Roost  

Mewtwo-Mega-X @ Focus Sash  
Ability: Huge Power  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe  
Adamant Nature  
- Photon Geyser  
- Sunsteel Strike  
- Light That Burns the Sky  
- Close Combat  

Muk-Alola @ Shed Shell  
Ability: Wonder Guard  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpA / 252 SpD  
Sassy Nature  
IVs: 0 Spe  
- Spectral Thief  
- U-turn  
- Aromatherapy  
- Recover