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

Tyranitar @ Chople Berry  
Ability: Sand Stream  
EVs: 248 HP / 8 Def / 252 SpD  
Careful Nature  
- Low Kick  
- Pursuit  
- Rock Slide  
- Thunder Wave  

Latios (M) @ Soul Dew  
Ability: Levitate  
EVs: 4 Def / 252 SpA / 252 Spe  
Modest Nature  
IVs: 0 Atk  
- Defog  
- Draco Meteor  
- Psyshock  
- Roost  

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

Arceus-Steel @ Iron Plate  
Ability: Multitype  
EVs: 252 Atk / 4 Def / 252 Spe  
Jolly Nature  
- Swords Dance  
- Iron Head  
- Earthquake  
- Recover  

Xerneas @ Choice Scarf  
Ability: Fairy Aura  
EVs: 4 Def / 252 SpA / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Moonblast  
- Geomancy  
- Sleep Talk