Mewtwo-Mega-X @ Mewtwonite X  
Ability: Steadfast  
EVs: 112 Atk / 144 Def / 252 Spe  
Jolly Nature  
- Low Kick  
- Taunt  
- Earthquake  
- Ice Punch  

Groudon-Primal @ Red Orb  
Ability: Desolate Land  
EVs: 248 HP / 8 Def / 252 SpD  
Sassy Nature  
- Stealth Rock  
- Precipice Blades  
- Lava Plume  
- Roar  

Arceus-Fairy @ Pixie Plate  
Ability: Multitype  
EVs: 252 HP / 4 Def / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Judgment  
- Earth Power  
- Recover  
- Calm Mind  

Skarmory @ Shed Shell  
Ability: Sturdy  
EVs: 252 HP / 4 Def / 252 SpD  
Calm Nature  
IVs: 0 Atk  
- Roost  
- Spikes  
- Toxic  
- Whirlwind  

Kyogre @ Blue Orb  
Ability: Drizzle  
EVs: 248 HP / 164 Def / 96 Spe  
Bold Nature  
IVs: 0 Atk  
- Rest  
- Sleep Talk  
- Scald  
- Toxic  

Yveltal @ Leftovers  
Ability: Dark Aura  
EVs: 248 HP / 196 Def / 64 Spe  
Bold Nature  
- Foul Play  
- Roost  
- Toxic  
- Taunt