Gen 7 Ice Gym TC

Beta (Aurorus) (F) @ Life Orb  
Ability: Refrigerate  
Shiny: Yes  
EVs: 252 HP / 252 SpA / 4 SpD  
Modest Nature  
IVs: 0 Atk  
- Ancient Power  
- Earth Power  
- Hyper Voice  
- Stealth Rock  

Omega (Ninetales-Alola) (F) @ Leftovers  
Ability: Snow Warning  
Shiny: Yes  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk / 30 SpA / 30 Spe  
- Aurora Veil  
- Moonblast  
- Hidden Power [Fire]  
- Ice Beam  

Sigma (Cloyster) (M) @ Focus Sash  
Ability: Skill Link  
Shiny: Yes  
EVs: 252 Atk / 4 SpD / 252 Spe  
Adamant Nature  
- Icicle Spear  
- Rock Blast  
- Shell Smash  
- Ice Shard  

Delta (Mamoswine) (M) @ Leftovers  
Ability: Oblivious  
Shiny: Yes  
EVs: 252 HP / 4 Atk / 252 Def  
Impish Nature  
- Stealth Rock  
- Earthquake  
- Ice Shard  
- Toxic  

Theta (Sandslash-Alola) (M) @ Focus Sash  
Ability: Slush Rush  
Shiny: Yes  
EVs: 252 Atk / 4 SpD / 252 Spe  
Adamant Nature  
- Earthquake  
- Icicle Crash  
- Iron Head  
- Swords Dance  

Alpha (Glalie-Mega) @ Glalitite  
Ability: Refrigerate  
Shiny: Yes  
EVs: 252 Atk / 4 SpD / 252 Spe  
Jolly Nature  
- Body Slam  
- Earthquake  
- Iron Head  
- Ice Shard