Deoxys-Speed @ Focus Sash  
Ability: Pressure  
EVs: 248 HP / 8 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Taunt  
- Spikes  
- Stealth Rock  
- Skill Swap  

Tapu Koko @ Light Clay  
Ability: Electric Surge  
EVs: 248 HP / 8 SpD / 252 Spe  
Jolly Nature  
- Taunt  
- Reflect  
- Light Screen  
- U-turn  

Arceus @ Leftovers  
Ability: Multitype  
EVs: 60 HP / 252 Atk / 196 Spe  
Jolly Nature  
- Substitute  
- Swords Dance  
- Shadow Claw  
- Extreme Speed  

Xerneas @ Power Herb  
Ability: Fairy Aura  
EVs: 152 HP / 252 SpA / 104 Spe  
Modest Nature  
IVs: 0 Atk  
- Geomancy  
- Moonblast  
- Focus Blast  
- Psyshock  

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

Zygarde @ Dragonium Z  
Ability: Power Construct  
EVs: 24 HP / 252 Atk / 232 Spe  
Adamant Nature  
- Dragon Dance  
- Outrage  
- Substitute  
- Thousand Arrows