Arceus-Water @ Splash Plate  
Ability: Multitype  
EVs: 252 HP / 64 Def / 192 Spe  
Timid Nature  
IVs: 0 Atk  
- Ice Beam  
- Toxic  
- Recover  
- Defog  

Groudon-Primal @ Red Orb  
Ability: Desolate Land  
EVs: 248 HP / 8 Def / 252 SpD  
Sassy Nature  
- Stealth Rock  
- Precipice Blades  
- Lava Plume  
- Roar  

Xerneas @ Power Herb  
Ability: Fairy Aura  
EVs: 172 HP / 40 Def / 252 SpA / 44 Spe  
Timid Nature  
IVs: 0 Atk  
- Geomancy  
- Moonblast  
- Hidden Power [Ground]  
- Thunder  

Ho-Oh @ Choice Band  
Ability: Regenerator  
EVs: 4 HP / 252 Atk / 252 Spe  
Adamant Nature  
- Brave Bird  
- Earthquake  
- Sacred Fire  
- Toxic  

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

Yveltal @ Choice Scarf  
Ability: Dark Aura  
EVs: 4 Atk / 252 SpA / 252 Spe  
Timid Nature  
- U-turn  
- Oblivion Wing  
- Dark Pulse  
- Foul Play