Abomasnow @ Choice Specs  
Ability: Snow Warning  
EVs: 252 HP / 252 SpA / 4 SpD  
Quiet Nature  
- Blizzard  
- Giga Drain  
- Focus Blast  
- Ice Shard  

Starmie @ Air Balloon  
Ability: Analytic  
EVs: 4 Def / 252 SpA / 252 Spe  
Timid Nature  
- Rapid Spin  
- Hydro Pump  
- Ice Beam  
- Thunderbolt  

Jirachi @ Choice Scarf  
Ability: Serene Grace  
EVs: 72 HP / 252 Atk / 184 Spe  
Jolly Nature  
- Iron Head  
- U-turn  
- Ice Punch  
- Healing Wish  

Latios (M) @ Colbur Berry  
Ability: Levitate  
EVs: 4 HP / 252 SpA / 252 Spe  
Timid Nature  
- Draco Meteor  
- Surf  
- Recover  
- Roar  

Mamoswine @ Never-Melt Ice  
Ability: Thick Fat  
EVs: 252 Atk / 4 SpD / 252 Spe  
Adamant Nature  
- Stealth Rock  
- Earthquake  
- Icicle Crash  
- Ice Shard  

Reuniclus @ Life Orb  
Ability: Magic Guard  
EVs: 192 HP / 64 Def / 252 SpA  
Quiet Nature  
IVs: 0 Spe  
- Trick Room  
- Psychic  
- Focus Blast  
- Hidden Power [Ice]