Mr. Rime @ Sitrus Berry  
Ability: Ice Body  
Level: 50  
EVs: 32 HP / 32 SpD  
Sassy Nature  
- Trick Room  
- Freeze-Dry  
- Protect  
- Psychic  

Avalugg @ Leftovers  
Ability: Own Tempo  
Level: 50  
EVs: 32 HP / 2 Atk / 32 SpD  
Sassy Nature  
- Body Press  
- Iron Defense  
- Ice Spinner  
- Recover  

Abomasnow-Mega @ Abomasite  
Ability: Snow Warning  
Level: 50  
EVs: 32 HP / 32 SpA / 2 SpD  
Quiet Nature  
- Energy Ball  
- Ice Beam  
- Protect  
- Earth Power  

Crabominable-Mega @ Crabominite  
Ability: Hyper Cutter  
Level: 50  
EVs: 32 HP / 32 Atk / 2 SpD  
Brave Nature  
- Ice Hammer  
- Drain Punch  
- Bulk Up  
- Protect  

Froslass-Mega (F) @ Froslassite  
Ability: Snow Cloak  
Level: 50  
EVs: 32 SpA / 2 SpD / 32 Spe  
Timid Nature  
- Aurora Veil  
- Blizzard  
- Shadow Ball  
- Protect  

Aurorus @ Chople Berry  
Ability: Snow Warning  
Level: 50  
EVs: 32 HP / 2 SpA / 32 SpD  
Calm Nature  
- Blizzard  
- Aurora Veil  
- Ancient Power  
- Protect