Kyogre @ Life Orb  
Ability: Drizzle  
Tera Type: Grass  
EVs: 252 HP / 252 SpA / 4 SpD  
Modest Nature  
IVs: 0 Atk  
- Water Spout  
- Thunder  
- Ice Beam  
- Calm Mind  

Groudon (Groudon-Primal) @ Red Orb  
Ability: Desolate Land  
Tera Type: Ground  
EVs: 252 HP / 56 Atk / 200 SpD  
Careful Nature  
- Precipice Blades  
- Stealth Rock  
- Thunder Wave  
- Overheat  

Rayquaza (Rayquaza-Mega) @ Life Orb  
Ability: Delta Stream  
Tera Type: Dragon  
EVs: 252 Atk / 4 SpA / 252 Spe  
Naive Nature  
- Dragon Ascent  
- Dragon Dance  
- Extreme Speed  
- Draco Meteor  

Ditto @ Choice Scarf  
Ability: Imposter  
Tera Type: Steel  
EVs: 248 HP / 8 Atk / 252 Def  
Impish Nature  
IVs: 30 Atk  
- Transform  

Deoxys (Deoxys-Speed) @ Eject Pack  
Ability: Pressure  
Tera Type: Ghost  
EVs: 252 HP / 4 Def / 252 Spe  
Timid Nature  
- Spikes  
- Taunt  
- Meteor Beam  
- Magic Coat  

Calyrex (Calyrex-Shadow) @ Choice Specs  
Ability: As One (Spectrier)  
Tera Type: Fairy  
EVs: 4 Def / 252 SpA / 252 Spe  
Timid Nature  
- Astral Barrage  
- Psyshock  
- Draining Kiss  
- Trick