Articuno @ Choice Scarf  
Ability: Snow Warning  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
- Blizzard  
- Hidden Power [Fire]  
- Hurricane  
- U-turn  

Articuno @ Heavy-Duty Boots  
Ability: Snow Warning  
EVs: 248 HP / 8 SpA / 252 SpD  
Calm Nature  
- Freeze-Dry  
- U-turn  
- Roost  
- Toxic / Haze / Whirlwind / Defog