Mew @ Light Clay  
Ability: Snow Warning  
EVs: 252 HP / 4 Def / 252 Spe  
Jolly Nature  
- Aurora Veil  
- Stealth Rock  
- U-turn  
- Taunt  

Magearna @ Leftovers  
Ability: Sheer Force  
EVs: 4 Def / 252 SpA / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Shift Gear  
- Calm Mind  
- Flash Cannon  
- Ice Beam  

Zygarde @ Iapapa Berry  
Ability: Magic Bounce  
EVs: 152 HP / 216 Atk / 28 SpD / 112 Spe  
Adamant Nature  
- Thousand Arrows  
- Extreme Speed  
- Dragon Dance  
- Coil  

Xurkitree @ Psychium Z  
Ability: No Guard  
EVs: 56 HP / 200 SpA / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Hypnosis  
- Tail Glow  
- Zap Cannon  
- Hidden Power [Ice]  

Gyarados-Mega @ Gyaradosite  
Ability: Motor Drive  
EVs: 252 Atk / 4 SpD / 252 Spe  
Adamant Nature  
- Dragon Dance  
- Waterfall  
- Crunch  
- Taunt  

Conkeldurr @ Life Orb  
Ability: Triage  
EVs: 252 Atk / 92 SpD / 164 Spe  
Adamant Nature  
- Bulk Up  
- Drain Punch  
- Knock Off  
- Thunder Punch