Tapu Fini @ Choice Scarf  
Ability: Misty Surge  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Trick  
- Hydro Pump  
- Moonblast  
- Ice Beam  

Volcanion @ Choice Specs  
Ability: Water Absorb  
EVs: 252 HP / 96 Def / 64 SpA / 96 SpD  
Modest Nature  
IVs: 0 Atk  
- Sludge Wave  
- Earth Power  
- Overheat  
- Steam Eruption  

Swampert @ Assault Vest  
Ability: Torrent  
EVs: 248 HP / 100 Def / 160 SpD  
Relaxed Nature  
- Mirror Coat  
- Hydro Cannon  
- Earthquake  
- Counter