Groudon @ Leftovers  
Ability: Drought  
EVs: 252 HP / 4 Atk / 252 Def  
Impish Nature  
- Stealth Rock  
- Precipice Blades  
- Toxic  
- Roar  

Kyogre @ Leftovers  
Ability: Drizzle  
EVs: 252 HP / 252 Def / 4 SpD  
Bold Nature  
IVs: 0 Atk  
- Scald  
- Rest  
- Sleep Talk  
- Calm Mind  

Yveltal @ Heavy-Duty Boots  
Ability: Dark Aura  
EVs: 248 HP / 76 SpD / 184 Spe  
Careful Nature  
IVs: 0 Atk  
- Defog  
- Roost  
- Taunt  
- Foul Play  

Zekrom @ Leftovers  
Ability: Teravolt  
EVs: 252 Atk / 4 SpD / 252 Spe  
Jolly Nature  
- Dragon Dance  
- Dragon Claw  
- Bolt Strike  
- Substitute  

Calyrex-Shadow @ Choice Specs  
Ability: As One (Spectrier)  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Trick  
- Draining Kiss  
- Psyshock  
- Astral Barrage  

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