Mamoswine @ Salac Berry  
Ability: Snow Cloak  
EVs: 52 HP / 252 Atk / 204 Spe  
Jolly Nature  
- Endure  
- Endeavor  
- Ice Shard  
- Earthquake  

Lopunny-Mega @ Lopunnite  
Ability: Limber  
EVs: 252 Atk / 4 SpD / 252 Spe  
Jolly Nature  
- Power-Up Punch  
- Return  
- High Jump Kick  
- Ice Punch  

Tapu Koko @ Wise Glasses  
Ability: Electric Surge  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Dazzling Gleam  
- Thunderbolt  
- Roost  
- Hidden Power [Ice]  

Heatran @ Leftovers  
Ability: Flash Fire  
EVs: 252 HP / 4 SpA / 252 SpD  
Calm Nature  
IVs: 0 Atk  
- Substitute  
- Toxic  
- Protect  
- Magma Storm  

Magearna @ Assault Vest  
Ability: Soul-Heart  
EVs: 248 HP / 8 SpA / 252 SpD  
Sassy Nature  
- Fleur Cannon  
- Iron Head  
- Hidden Power [Fire]  
- Volt Switch  

Celebi @ Leftovers  
Ability: Natural Cure  
Shiny: Yes  
EVs: 252 HP / 220 Def / 36 Spe  
Bold Nature  
IVs: 0 Atk  
- Leaf Storm  
- Stealth Rock  
- Recover  
- Toxic