Giratina @ Safety Goggles  
Ability: Prankster  
EVs: 248 HP / 8 Def / 252 SpD  
Calm Nature  
IVs: 0 Atk  
- Curse  
- Encore  
- Spore  
- Heal Order  

Mewtwo-Mega-X @ Choice Scarf  
Ability: Shadow Tag  
EVs: 96 HP / 252 Atk / 24 Def / 136 Spe  
Naive Nature  
- Gunk Shot  
- Low Kick  
- Steam Eruption  
- Ice Shard  

Gyarados-Mega @ Lum Berry  
Ability: Huge Power  
EVs: 248 HP / 252 Atk / 8 Def  
Adamant Nature  
- Pursuit  
- Ice Shard  
- Water Shuriken  
- Sucker Punch  

Rayquaza-Mega @ Shed Shell  
Ability: Mold Breaker  
EVs: 252 SpA / 4 SpD / 252 Spe  
Modest Nature  
IVs: 0 Atk  
- Quiver Dance  
- Oblivion Wing  
- Taunt  
- Substitute  

Deoxys-Speed @ Leftovers  
Ability: Wonder Guard  
EVs: 248 HP / 8 SpA / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Psystrike  
- Baton Pass  
- Substitute  
- Taunt  

Kyogre-Primal @ Safety Goggles  
Ability: Wonder Guard  
EVs: 248 HP / 8 SpA / 252 SpD  
Calm Nature  
IVs: 0 Atk  
- Parting Shot  
- Scald  
- Recover  
- Stealth Rock