Regigigas @ Safety Goggles  
Ability: Mold Breaker  
EVs: 252 Atk / 4 SpD / 252 Spe  
Jolly Nature  
- Belly Drum  
- Extreme Speed  
- Thousand Arrows  
- Spore  

Mewtwo-Mega-X @ Shed Shell  
Ability: Huge Power  
EVs: 252 Atk / 4 SpD / 252 Spe  
Jolly Nature  
- Drain Punch  
- Play Rough  
- Thousand Arrows  
- U-turn  

Metagross-Mega @ Choice Scarf  
Ability: Huge Power  
EVs: 252 Atk / 4 Def / 252 Spe  
Jolly Nature  
- Gear Grind  
- Sacred Fire  
- Leaf Blade  
- Diamond Storm  

Gyarados @ Gyaradosite  
Ability: Wonder Guard  
EVs: 252 Atk / 4 SpA / 252 Spe  
Lonely Nature  
- Shell Smash  
- Knock Off  
- Water Shuriken  
- Taunt  

Giratina @ Griseous Orb  
Ability: Prankster  
EVs: 248 HP / 8 Def / 252 SpD  
Calm Nature  
IVs: 0 Atk  
- Haze  
- Substitute  
- Curse  
- Slack Off  

Chansey (F) @ Choice Scarf  
Ability: Imposter  
EVs: 248 HP / 8 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Whirlwind  
- Baton Pass  
- Soft-Boiled  
- Trick