Pelipper @ Damp Rock  
Ability: Drizzle  
EVs: 252 HP / 252 Def / 4 SpD  
Bold Nature  
- Roost  
- Scald  
- Defog  
- U-turn  

Omastar @ Power Herb  
Ability: Swift Swim  
EVs: 252 SpA / 4 SpD / 252 Spe  
Modest Nature  
IVs: 0 Atk  
- Shell Smash  
- Meteor Beam  
- Surf  
- Ice Beam  

Aegislash @ Spell Tag  
Ability: Stance Change  
EVs: 40 Atk / 252 SpA / 216 Spe  
Modest Nature  
- Close Combat  
- Shadow Sneak  
- Flash Cannon  
- Shadow Ball  

Quagsire @ Leftovers  
Ability: Unaware  
EVs: 252 HP / 252 Def / 4 SpD  
Relaxed Nature  
- Earthquake  
- Ice Beam  
- Toxic  
- Recover  

Rillaboom @ Choice Band  
Ability: Grassy Surge  
EVs: 252 Atk / 4 SpD / 252 Spe  
Jolly Nature  
- Grassy Glide  
- Wood Hammer  
- Knock Off  
- U-turn  

Latios (M) @ Choice Scarf  
Ability: Levitate  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Ice Beam  
- Aura Sphere  
- Thunderbolt  
- Memento