Clefable @ Rocky Helmet  
Ability: Magic Guard  
EVs: 252 HP / 188 Def / 68 Spe  
Impish Nature  
IVs: 0 Atk  
- Moonblast  
- Soft-Boiled  
- Stealth Rock  
- Encore  

Tornadus-Therian (M)  
Ability: Regenerator  
EVs: 252 HP / 4 Def / 252 Spe  
Jolly Nature  
- U-turn  
- Superpower  
- Acrobatics  
- Defog  

Mew @ Heavy-Duty Boots  
Ability: Synchronize  
EVs: 252 HP / 252 Def / 4 SpD  
Bold Nature  
IVs: 0 Atk  
- Scald  
- Roost  
- Teleport  
- Spikes  

Melmetal @ Leftovers  
Ability: Iron Fist  
EVs: 252 Atk / 244 SpD / 12 Spe  
Adamant Nature  
- Earthquake  
- Double Iron Bash  
- Protect  
- Toxic  

Hydreigon @ Life Orb  
Ability: Levitate  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Flash Cannon  
- Draco Meteor  
- Nasty Plot  
- Roost  

Barraskewda @ Choice Band  
Ability: Swift Swim  
EVs: 252 Atk / 4 SpD / 252 Spe  
Jolly Nature  
- Liquidation  
- Psychic Fangs  
- Flip Turn  
- Aqua Jet