Arceus-Poison @ Poisonium Z  
Ability: Multitype  
EVs: 248 HP / 80 Def / 84 SpD / 96 Spe  
Jolly Nature  
- Poison Jab  
- Recover  
- Will-O-Wisp  
- Perish Song  

Groudon-Primal @ Red Orb  
Ability: Desolate Land  
EVs: 248 HP / 56 Def / 192 SpD / 12 Spe  
Impish Nature  
- Stealth Rock  
- Precipice Blades  
- Toxic  
- Dragon Tail  

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

Arceus-Dark @ Dread Plate  
Ability: Multitype  
EVs: 252 HP / 160 Def / 96 Spe  
Timid Nature  
IVs: 0 Atk  
- Judgment  
- Recover  
- Toxic  
- Defog  

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

Xerneas @ Choice Specs  
Ability: Fairy Aura  
EVs: 176 Def / 252 SpA / 80 Spe  
Modest Nature  
IVs: 0 Atk  
- Moonblast  
- Aromatherapy  
- Defog  
- Psyshock