Necrozma-Dusk-Mane @ Rocky Helmet  
Ability: Prism Armor  
EVs: 252 HP / 224 Def / 32 Spe  
Impish Nature  
- Stealth Rock  
- Sunsteel Strike  
- Toxic  
- Morning Sun  

Yveltal @ Heavy-Duty Boots  
Ability: Dark Aura  
EVs: 252 HP / 4 Def / 252 SpD  
Careful Nature  
IVs: 28 Spe  
- Knock Off  
- Roost  
- Defog  
- U-turn  

Eternatus @ Eject Pack  
Ability: Pressure  
EVs: 248 HP / 80 SpA / 164 SpD / 16 Spe  
Timid Nature  
IVs: 0 Atk  
- Flamethrower  
- Sludge Bomb  
- Draco Meteor  
- Recover  

Kyogre @ Choice Specs  
Ability: Drizzle  
EVs: 4 Def / 252 SpA / 252 Spe  
Modest Nature  
IVs: 0 Atk  
- Water Spout  
- Origin Pulse  
- Ice Beam  
- Thunder  

Ditto @ Choice Scarf  
Ability: Imposter  
EVs: 248 HP / 252 Def / 8 SpD  
Relaxed Nature  
IVs: 0 Spe  
- Transform  

Ho-Oh @ Heavy-Duty Boots  
Ability: Regenerator  
EVs: 232 HP / 116 Atk / 64 SpD / 96 Spe  
Careful Nature  
- Sacred Fire  
- Thunder Wave  
- Brave Bird  
- Whirlwind