Kyogre-Primal @ Leftovers  
Ability: Wonder Guard  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Rash Nature  
- Toxic  
- Shell Smash  
- Sunsteel Strike  
- Moongeist Beam  

Gyarados-Mega @ Shed Shell  
Ability: Magic Bounce  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe  
Impish Nature  
- Spectral Thief  
- Shore Up  
- Baton Pass  
- Strength Sap  

Arceus @ Safety Goggles  
Ability: Wonder Guard  
EVs: 252 HP / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Bold Nature  
IVs: 0 Atk  
- Lava Plume  
- Defog  
- Baton Pass  
- Strength Sap  

Dialga @ Leppa Berry  
Ability: Harvest  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Naive Nature  
- Extreme Evoboost  
- Searing Sunraze Smash  
- Clangorous Soulblaze  
- Recover  

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

Chansey (F) @ Leftovers  
Ability: Innards Out  
EVs: 252 HP / 252 SpD  
Sassy Nature  
IVs: 0 Atk / 0 Def / 0 Spe  
- Spikes  
- Aromatherapy  
- Baton Pass  
- Roost