Decidueye @ Rocky Helmet  
Ability: Magic Bounce  
EVs: 252 HP / 232 Def / 24 Spe  
Impish Nature  
- Spirit Shackle  
- U-turn  
- Roost  
- Imprison  

Mamoswine @ Choice Band  
Ability: Adaptability  
EVs: 252 Atk / 4 Def / 252 Spe  
Adamant Nature  
- Earthquake  
- Icicle Crash  
- Ice Shard  
- Toxic  

Heatran @ Leftovers  
Ability: Desolate Land  
EVs: 244 HP / 12 Def / 252 SpD  
Calm Nature  
IVs: 0 Atk  
- Stealth Rock  
- Magma Storm  
- Taunt  
- Solar Beam  

Mandibuzz (F) @ Heavy-Duty Boots  
Ability: Primordial Sea  
EVs: 248 HP / 124 Def / 136 SpD  
Relaxed Nature  
IVs: 0 Spe  
- Roost  
- U-turn  
- Defog  
- Brave Bird  

Mew @ Choice Scarf  
Ability: Regenerator  
EVs: 252 HP / 104 Def / 152 Spe  
Impish Nature  
- Trick  
- Teleport  
- Will-O-Wisp  
- Gunk Shot  

Tapu Fini @ Choice Scarf  
Ability: Regenerator  
EVs: 252 HP / 80 Def / 176 Spe  
Timid Nature  
- Knock Off  
- Hydro Pump  
- Moonblast  
- Trick