Gyarados-Mega @ Gyaradosite  
Ability: Mold Breaker  
EVs: 252 Atk / 4 SpD / 252 Spe  
Jolly Nature  
- Dragon Dance  
- Waterfall  
- Crunch  
- Taunt  

Serperior @ Light Clay  
Ability: Contrary  
EVs: 252 HP / 4 Def / 252 Spe  
Timid Nature  
- Light Screen  
- Reflect  
- Leaf Storm  
- Taunt  

Volcarona @ Life Orb  
Ability: Flame Body  
EVs: 252 SpA / 4 SpD / 252 Spe  
Modest Nature  
IVs: 1 Atk / 30 SpA / 30 SpD  
- Quiver Dance  
- Flamethrower  
- Giga Drain  
- Hidden Power [Ground]  

Cloyster @ Focus Sash  
Ability: Skill Link  
Shiny: Yes  
EVs: 252 Atk / 4 SpD / 252 Spe  
Adamant Nature  
- Shell Smash  
- Icicle Spear  
- Toxic Spikes  
- Rapid Spin  

Garchomp (M) @ Lum Berry  
Ability: Rough Skin  
EVs: 252 Atk / 4 Def / 252 Spe  
Jolly Nature  
- Swords Dance  
- Earthquake  
- Outrage  
- Stealth Rock  

Thundurus (M) @ Leftovers  
Ability: Prankster  
Hidden Power: Ice  
EVs: 4 Def / 252 SpA / 252 Spe  
Timid Nature  
IVs: 0 Atk / 30 Def  
- Nasty Plot  
- Thunderbolt  
- Hidden Power [Ice]  
- Focus Blast