Gyarados-Mega @ Gyaradosite  
Ability: Mold Breaker  
EVs: 252 Atk / 116 SpD / 140 Spe  
Jolly Nature  
- Dragon Dance  
- Scale Shot  
- Earthquake  
- Ice Fang  

Volcarona @ Heavy-Duty Boots  
Ability: Flame Body  
EVs: 252 SpA / 4 SpD / 252 Spe  
Modest Nature  
IVs: 0 Atk  
- Bug Buzz  
- Flamethrower  
- Quiver Dance  
- Hidden Power [Ground]  

Blacephalon @ Psychium Z  
Ability: Beast Boost  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Hypnosis  
- Flamethrower  
- Dark Pulse  
- Hidden Power [Grass]  

Serperior @ Leftovers  
Ability: Contrary  
EVs: 4 Atk / 252 SpA / 252 Spe  
Hasty Nature  
IVs: 30 Atk  
- Leaf Storm  
- Hidden Power [Fire]  
- Dragon Pulse  
- Knock Off  

Landorus-Therian (M) @ Focus Sash  
Ability: Intimidate  
EVs: 252 Atk / 4 SpD / 252 Spe  
Jolly Nature  
- Earthquake  
- Explosion  
- Swords Dance  
- Stealth Rock  

Quagsire @ Leftovers  
Ability: Unaware  
EVs: 252 HP / 252 Atk / 4 SpD  
Adamant Nature  
- Ice Punch  
- Earthquake  
- Liquidation  
- Recover