Deoxys-Speed @ Focus Sash  
Ability: Pressure  
EVs: 252 HP / 4 Def / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Stealth Rock  
- Spikes  
- Taunt  
- Thunder Wave  

Azelf @ Light Clay  
Ability: Levitate  
EVs: 248 HP / 8 SpD / 252 Spe  
Jolly Nature  
- Reflect  
- Light Screen  
- Taunt  
- U-turn  

Xerneas @ Power Herb  
Ability: Fairy Aura  
EVs: 168 Def / 252 SpA / 88 Spe  
Modest Nature  
- Geomancy  
- Moonblast  
- Thunder  
- Hidden Power [Fire]  

Groudon-Primal @ Red Orb  
Ability: Desolate Land  
Shiny: Yes  
EVs: 8 HP / 252 Atk / 80 SpD / 168 Spe  
Adamant Nature  
- Rock Polish  
- Swords Dance  
- Earthquake  
- Stone Edge  

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

Marshadow @ Marshadium Z  
Ability: Technician  
EVs: 252 Atk / 4 Def / 252 Spe  
Jolly Nature  
- Bulk Up  
- Spectral Thief  
- Close Combat  
- Shadow Sneak