Tentacruel @ Lum Berry  
Ability: Clear Body  
EVs: 40 HP / 252 SpA / 216 Spe  
Timid Nature  
- Surf  
- Ice Beam  
- Rapid Spin  
- Toxic Spikes  

Groudon @ Leftovers  
Ability: Drought  
EVs: 80 HP / 252 Atk / 176 Spe  
Adamant Nature  
- Earthquake  
- Fire Punch  
- Dragon Claw  
- Rock Polish  

Mewtwo @ Life Orb  
Ability: Pressure  
EVs: 4 Def / 252 SpA / 252 Spe  
Timid Nature  
IVs: 27 HP  
- Ice Beam  
- Aura Sphere  
- Grass Knot  
- Recover  

Dialga @ Life Orb  
Ability: Pressure  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
IVs: 29 HP  
- Draco Meteor  
- Aura Sphere  
- Thunder  
- Stealth Rock  

Giratina-Origin @ Griseous Orb  
Ability: Levitate  
EVs: 4 Def / 252 SpA / 252 Spe  
Timid Nature  
- Draco Meteor  
- Aura Sphere  
- Hidden Power [Fire]  
- Roar  

Arceus @ Silk Scarf  
Ability: Multitype  
EVs: 100 HP / 100 Atk / 100 Def / 100 SpD / 100 Spe  
Jolly Nature  
- Swords Dance  
- Extreme Speed  
- Shadow Claw  
- Earthquake