Mamoswine @ Life Orb  
Ability: Thick Fat  
EVs: 252 Atk / 4 SpD / 252 Spe  
Jolly Nature  
- Earthquake  
- Icicle Crash  
- Ice Shard  
- Stealth Rock  

Latias-Mega (F) @ Latiasite  
Ability: Levitate  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Calm Mind  
- Roost  
- Ice Beam  
- Thunderbolt  

Tapu Koko @ Electrium Z  
Ability: Electric Surge  
EVs: 252 Atk / 4 SpA / 252 Spe  
Naive Nature  
- Wild Charge  
- U-turn  
- Hidden Power [Ice]  
- Defog  

Greninja @ Choice Specs  
Ability: Battle Bond  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
- Hydro Pump  
- Dark Pulse  
- Water Shuriken  
- Spikes  

Celesteela @ Leftovers  
Ability: Beast Boost  
EVs: 252 HP / 4 Atk / 252 Def  
Relaxed Nature  
- Leech Seed  
- Flamethrower  
- Heavy Slam  
- Protect  

Tangrowth @ Assault Vest  
Ability: Regenerator  
EVs: 252 HP / 4 Def / 252 SpD  
Sassy Nature  
- Knock Off  
- Hidden Power [Ice]  
- Giga Drain  
- Earthquake