Deoxys @ Choice Scarf  
Ability: Pressure  
EVs: 252 Atk / 4 SpA / 252 Spe  
Hasty Nature  
- Psycho Boost  
- Low Kick  
- Extreme Speed  
- Ice Beam  

Groudon @ Red Orb  
Ability: Drought  
EVs: 252 HP / 156 Def / 100 SpD  
Relaxed Nature  
- Stealth Rock  
- Precipice Blades  
- Overheat  
- Toxic  

Aegislash @ Leftovers  
Ability: Stance Change  
EVs: 252 HP / 4 SpA / 252 SpD  
Sassy Nature  
IVs: 0 Spe  
- King's Shield  
- Toxic  
- Gyro Ball  
- Shadow Ball  

Pheromosa @ Darkinium Z  
Ability: Beast Boost  
EVs: 252 Atk / 4 SpA / 252 Spe  
Naughty Nature  
- Low Kick  
- U-turn  
- Ice Beam  
- Throat Chop  

Xerneas @ Power Herb  
Ability: Fairy Aura  
EVs: 172 Def / 252 SpA / 84 Spe  
Modest Nature  
IVs: 0 Atk  
- Geomancy  
- Moonblast  
- Thunder  
- Focus Blast  

Arceus-Ground @ Earth Plate  
Ability: Multitype  
EVs: 156 HP / 100 Atk / 252 Spe  
Jolly Nature  
- Earthquake  
- Recover  
- Toxic  
- Defog