Rayquaza-Mega @ Leftovers  
Ability: Delta Stream  
EVs: 252 Atk / 4 SpD / 252 Spe  
Adamant Nature  
- Dragon Ascent  
- Extreme Speed  
- Dragon Dance  
- Substitute  

Arceus-Poison @ Poisonium Z  
Ability: Multitype  
EVs: 252 HP / 4 Atk / 252 Spe  
Jolly Nature  
- Poison Jab  
- Whirlpool  
- Recover  
- Perish Song  

Arceus-Dark @ Dread Plate  
Ability: Multitype  
EVs: 252 HP / 240 Def / 16 Spe  
Bold Nature  
IVs: 0 Atk  
- Judgment  
- Toxic  
- Recover  
- Defog  

Arceus @ Life Orb  
Ability: Multitype  
EVs: 252 Atk / 4 SpD / 252 Spe  
Jolly Nature  
- Swords Dance  
- Extreme Speed  
- Shadow Claw  
- Earthquake  

Ferrothorn @ Leftovers  
Ability: Iron Barbs  
EVs: 252 HP / 4 Atk / 252 SpD  
Careful Nature  
- Bullet Seed  
- Leech Seed  
- Protect  
- Stealth Rock  

Marshadow @ Life Orb  
Ability: Technician  
EVs: 252 Atk / 4 SpD / 252 Spe  
Jolly Nature  
- Close Combat  
- Shadow Sneak  
- Spectral Thief  
- Substitute