Regice @ Heavy-Duty Boots  
Ability: Snow Warning  
EVs: 252 HP / 252 Def / 4 SpD  
Bold Nature  
IVs: 0 Atk  
- Blizzard  
- Hidden Power [Fire]  
- Toxic  
- Recrystalize  

Toxapex @ Black Sludge  
Ability: Regenerator  
EVs: 252 HP / 252 Def / 4 SpD  
Bold Nature  
IVs: 0 Atk  
- Scald  
- Toxic Spikes  
- Recover  
- Haze  

Landorus-Therian (M) @ Choice Scarf  
Ability: Intimidate  
EVs: 252 Atk / 4 SpD / 252 Spe  
Jolly Nature  
- Earthquake  
- Knock Off  
- U-turn  
- Defog  

Zeraora @ Anguish Bandanna  
Ability: Volt Absorb  
EVs: 252 Atk / 4 SpD / 252 Spe  
Jolly Nature  
- Plasma Fists  
- Close Combat  
- Ice Punch  
- Volt Switch  

Maggie (Magearna) @ Assault Shield  
Ability: Soul-Heart  
EVs: 248 HP / 224 Def / 36 Spe  
Relaxed Nature  
- Fleur Cannon  
- Iron Head  
- Volt Switch  
- Focus Blast  

Latios (M) @ Latiosite  
Ability: Levitate  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Psyshock  
- Ice Beam  
- Aura Sphere  
- Calm Mind