Heracross @ Lum Berry  
Ability: Guts  
Level: 50  
EVs: 4 HP / 252 Atk / 252 Spe  
Adamant Nature  
- Megahorn  
- Brick Break  
- Earthquake  
- Rock Slide

Starmie @ Shell Bell  
Ability: Natural Cure  
Level: 50  
EVs: 252 SpA / 4 SpD / 252 Spe  
Modest Nature  
- Surf  
- Psychic  
- Ice Beam  
- Thunderbolt

Blissey @ Leftovers  
Ability: Natural Cure  
Level: 50  
EVs: 252 HP / 252 Def / 4 SpD  
Bold Nature  
- Seismic Toss  
- Toxic  
- Soft-Boiled  
- Aromatherapy