Mewtwo-Mega-X @ Lum Berry  
Ability: Huge Power  
EVs: 252 Atk / 160 Def / 96 Spe  
Adamant Nature  
- Drain Punch  
- Gunk Shot  
- Beat Up  
- Thousand Arrows  

Mewtwo-Mega-X @ Expert Belt  
Ability: Huge Power  
EVs: 252 Atk / 36 Def / 220 Spe  
Adamant Nature  
- Gastro Acid  
- Petal Blizzard  
- Sacred Fire  
- Play Rough  

Giratina @ Leftovers  
Ability: Magic Bounce  
EVs: 248 HP / 252 Def / 8 SpD  
Relaxed Nature  
IVs: 0 Atk / 0 Spe  
- Substitute  
- Curse  
- Roost  
- Baton Pass  

Xerneas @ Leftovers  
Ability: Wonder Guard  
EVs: 248 HP / 8 Def / 252 SpA  
Quiet Nature  
IVs: 0 Spe  
- Toxic Spikes
- Substitute  
- Moonblast  
- Baton Pass  

Kyogre-Primal @ Shed Shell  
Ability: Wonder Guard  
EVs: 248 HP / 252 Def / 8 SpD  
Bold Nature  
IVs: 0 Atk  
- Scald  
- Defog  
- Aromatherapy  
- Wish  

Rayquaza-Mega @ Sky Plate  
Ability: Aerilate  
EVs: 200 HP / 252 Atk / 56 Spe  
Naughty Nature  
- Fake Out  
- Extreme Speed  
- Boomburst  
- Stealth Rock