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

Necrozma-Dusk-Mane @ Ultranecrozium Z  
Ability: Prism Armor  
EVs: 248 Atk / 8 SpD / 252 Spe  
Jolly Nature  
- Swords Dance  
- Photon Geyser  
- Earthquake  
- Morning Sun  

Skarmory @ Leftovers  
Ability: Sturdy  
EVs: 252 HP / 252 Def / 4 SpD  
Bold Nature  
IVs: 0 Atk  
- Defog  
- Whirlwind  
- Toxic  
- Roost  

Groudon-Primal @ Red Orb  
Ability: Desolate Land  
EVs: 252 HP / 232 SpD / 24 Spe  
Careful Nature  
- Toxic  
- Dragon Tail  
- Fire Punch  
- Rest  

Arceus-Dark @ Dread Plate  
Ability: Multitype  
EVs: 252 HP / 4 SpA / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Stealth Rock  
- Will-O-Wisp  
- Recover  
- Judgment  

Arceus-Water @ Splash Plate  
Ability: Multitype  
EVs: 252 HP / 240 Def / 16 Spe  
Bold Nature  
IVs: 0 Atk  
- Perish Song  
- Recover  
- Toxic  
- Ice Beam