Kyogre-Primal @ Blue Orb  
Ability: Primordial Sea  
EVs: 252 HP / 252 Def / 4 Spe  
Bold Nature  
IVs: 0 Atk  
- Rest  
- Sleep Talk  
- Scald  
- Toxic  

Gengar-Mega @ Gengarite  
Ability: Shadow Tag  
EVs: 248 HP / 8 Def / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Substitute  
- Encore  
- Perish Song  
- Destiny Bond  

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

Zacian-Crowned @ Rusted Sword  
Ability: Intrepid Sword  
EVs: 4 HP / 252 Atk / 252 Spe  
Jolly Nature  
- Wild Charge  
- Behemoth Blade  
- Close Combat  
- Substitute  

Ho-Oh @ Heavy-Duty Boots  
Ability: Regenerator  
EVs: 248 HP / 208 Def / 52 SpD  
Relaxed Nature  
IVs: 0 Spe  
- Sacred Fire  
- Toxic  
- Whirlwind  
- Defog  

Groudon-Primal @ Red Orb  
Ability: Desolate Land  
EVs: 252 HP / 252 SpD / 4 Spe  
Careful Nature  
- Stealth Rock  
- Precipice Blades  
- Dragon Tail  
- Toxic