Ho-Oh @ Heavy-Duty Boots  
Ability: Desolate Land  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe  
Impish Nature  
- Recover  
- V-create  
- Stealth Rock  
- Spectral Thief  

Zamazenta-Crowned @ Expert Belt  
Ability: Tough Claws  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe  
Jolly Nature  
- Sunsteel Strike  
- Close Combat  
- Swords Dance  
- Glacial Lance  

Giratina @ Heavy-Duty Boots  
Ability: Magic Bounce  
EVs: 252 HP / 252 Def / 252 SpA / 252 SpD  
Relaxed Nature  
IVs: 0 Spe  
- Parting Shot  
- Recover  
- Core Enforcer  
- Nuzzle  

Kyogre @ Toxic Orb  
Ability: Poison Heal  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Modest Nature  
IVs: 0 Atk  
- King's Shield  
- Scald  
- Ice Beam  
- Spikes  

Magearna-Original @ Assault Vest  
Ability: Regenerator  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpA / 252 SpD  
Sassy Nature  
IVs: 0 Spe  
- U-turn  
- Rapid Spin  
- Knock Off  
- Spectral Thief  

Yveltal @ Sharp Beak  
Ability: Aerilate  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Timid Nature  
- Boomburst  
- Rapid Spin  
- Volt Switch  
- Strength Sap