Rayquaza-Mega @ Life Orb  
Ability: Delta Stream  
EVs: 252 Atk / 4 SpA / 252 Spe  
Naughty Nature  
- Dragon Ascent  
- V-create  
- Extreme Speed  
- Draco Meteor  

Deoxys-Speed @ Light Clay  
Ability: Pressure  
EVs: 208 HP / 84 Def / 216 Spe  
Timid Nature  
IVs: 0 Atk  
- Reflect  
- Light Screen  
- Stealth Rock  
- Taunt  

Naganadel @ Dragonium Z  
Ability: Beast Boost  
Shiny: Yes  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Nasty Plot  
- Draco Meteor  
- Sludge Wave  
- Fire Blast  

Xerneas @ Power Herb  
Ability: Fairy Aura  
EVs: 96 Def / 252 SpA / 160 Spe  
Modest Nature  
IVs: 0 Atk  
- Geomancy  
- Moonblast  
- Psyshock  
- Focus Blast  

Arceus @ Chople Berry  
Ability: Multitype  
EVs: 252 Atk / 4 SpD / 252 Spe  
Adamant Nature  
- Swords Dance  
- Facade  
- Extreme Speed  
- Shadow Claw  

Necrozma-Dusk-Mane @ Weakness Policy  
Ability: Prism Armor  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Stored Power  
- Rock Polish  
- Heat Wave  
- Calm Mind