Kyogre @ Life Orb  
Ability: Drizzle  
EVs: 4 Def / 252 SpA / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Calm Mind  
- Origin Pulse  
- Ice Beam  
- Hidden Power [Flying]  

Eternatus @ Metronome  
Ability: Pressure  
EVs: 4 Def / 252 SpA / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Toxic  
- Dragon Pulse  
- Flamethrower  
- Recover  

Groudon-Primal @ Red Orb  
Ability: Desolate Land  
EVs: 252 HP / 120 Atk / 36 Def / 8 SpD / 92 Spe  
Adamant Nature  
- Stealth Rock  
- Precipice Blades  
- Stone Edge  
- Swords Dance  

Ho-Oh @ Heavy-Duty Boots  
Ability: Regenerator  
EVs: 248 HP / 192 Def / 52 SpD / 16 Spe  
Impish Nature  
- Sacred Fire  
- Toxic  
- Whirlwind  
- Defog  

Necrozma-Dusk-Mane @ Rocky Helmet  
Ability: Prism Armor  
EVs: 252 HP / 252 Def / 4 SpD  
Impish Nature  
- Toxic  
- Knock Off  
- Sunsteel Strike  
- Morning Sun  

Arceus-Ground @ Earth Plate  
Ability: Multitype  
EVs: 252 HP / 240 Def / 16 Spe  
Bold Nature  
IVs: 0 Atk  
- Judgment  
- Ice Beam  
- Recover  
- Toxic