Volcarona @ Mystic Water  
Ability: Flame Body  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
IVs: 1 Atk  
- Hidden Power [Water]  
- Bug Buzz  
- Hurricane  
- Quiver Dance  

Manaphy @ Waterium Z  
Ability: Hydration  
EVs: 184 HP / 252 SpA / 72 Spe  
Modest Nature  
IVs: 0 Atk  
- Surf  
- Tail Glow  
- Rest  
- Energy Ball  

Pelipper @ Damp Rock  
Ability: Drizzle  
EVs: 248 HP / 32 Def / 228 SpD  
Bold Nature  
- Defog  
- U-turn  
- Roost  
- Scald  

Weavile @ Choice Band  
Ability: Pressure  
EVs: 252 Atk / 4 SpD / 252 Spe  
Jolly Nature  
- Icicle Crash  
- Pursuit  
- Ice Shard  
- Knock Off  

Skarmory @ Rocky Helmet  
Ability: Sturdy  
EVs: 252 HP / 4 Def / 252 SpD  
Careful Nature  
- Roost  
- Defog  
- Brave Bird  
- Spikes  

Swampert-Mega @ Swampertite  
Ability: Swift Swim  
EVs: 252 Atk / 4 SpD / 252 Spe  
Jolly Nature  
- Earthquake  
- Waterfall  
- Substitute  
- Stealth Rock