Deoxys-Speed @ Focus Sash  
Ability: Pressure  
EVs: 4 HP / 252 Def / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Stealth Rock  
- Taunt  
- Magic Coat  
- Skill Swap  

Deoxys-Speed @ Light Clay  
Ability: Pressure  
EVs: 252 HP / 4 Def / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Reflect  
- Light Screen  
- Taunt  
- Spikes  

Eternatus @ Weakness Policy  
Ability: Pressure  
EVs: 248 HP / 252 SpA / 8 Spe  
Modest Nature  
IVs: 0 Atk  
- Agility  
- Dynamax Cannon  
- Sludge Wave  
- Flamethrower 

Xerneas @ Power Herb  
Ability: Fairy Aura  
Hidden Power: Fire  
EVs: 40 Def / 252 SpA / 216 Spe  
Modest Nature  
IVs: 0 Atk  
- Geomancy  
- Moonblast  
- Thunder  
- Hidden Power  

Necrozma-Dusk-Mane @ Ultranecrozium Z  
Ability: Prism Armor  
EVs: 252 Atk / 4 Def / 252 Spe  
Naughty Nature  
- Dragon Dance  
- Photon Geyser  
- Earthquake  
- Rock Blast  

Rayquaza-Mega @ Lum Berry  
Ability: Delta Stream  
EVs: 252 Atk / 4 Def / 252 Spe  
Adamant Nature  
- Dragon Dance  
- Dragon Ascent  
- Earthquake  
- Extreme Speed