Mantine @ Choice Specs  
Ability: Water Veil  
EVs: 252 HP / 176 Def / 80 SpA  
Bold Nature  
IVs: 0 Atk  
- Hydro Pump  
- Hurricane  
- Ice Beam  
- Air Slash  

Heatran @ Air Balloon  
Ability: Flash Fire  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Overheat  
- Flash Cannon  
- Earth Power  
- Taunt  

Rillaboom @ Grassy Seed  
Ability: Grassy Surge  
EVs: 252 HP / 20 Atk / 236 Def  
Impish Nature  
- Grassy Glide  
- Leech Seed  
- Substitute  
- Protect