Rayquaza-Mega @ Choice Band  
Ability: Delta Stream  
EVs: 252 Atk / 4 SpD / 252 Spe  
Adamant Nature  
- Dragon Ascent  
- V-create  
- Extreme Speed  
- Outrage  

Groudon-Primal @ Red Orb  
Ability: Desolate Land  
EVs: 248 HP / 8 Def / 252 SpD  
Adamant Nature  
- Stealth Rock  
- Precipice Blades  
- Toxic  
- Dragon Tail  

Necrozma-Dusk-Mane @ Ultranecrozium Z  
Ability: Prism Armor  
EVs: 252 Atk / 4 SpD / 252 Spe  
Jolly Nature  
- Swords Dance  
- Photon Geyser  
- Earthquake  
- Outrage  

Xerneas @ Choice Scarf  
Ability: Fairy Aura  
EVs: 252 SpA / 4 SpD / 252 Spe  
Modest Nature  
IVs: 0 Atk  
- Moonblast  
- Aromatherapy  
- Defog  
- Thunder Wave  

Arceus-Water @ Splash Plate  
Ability: Multitype  
EVs: 248 HP / 224 Def / 36 Spe  
Bold Nature  
IVs: 0 Atk  
- Judgment  
- Recover  
- Ice Beam  
- Toxic  

Arceus-Dark @ Dread Plate  
Ability: Multitype  
EVs: 248 HP / 172 Def / 88 Spe  
Bold Nature  
IVs: 0 Atk  
- Judgment  
- Recover  
- Toxic  
- Defog