Giratina-Origin @ Griseous Orb  
Ability: Levitate  
EVs: 176 HP / 252 Atk / 4 Def / 76 Spe  
Adamant Nature  
- Poltergeist  
- Stone Edge  
- Shadow Sneak  
- Defog  

Necrozma-Dusk-Mane @ Leftovers  
Ability: Prism Armor  
EVs: 252 HP / 136 Def / 120 Spe  
Impish Nature  
- Stealth Rock  
- Moonlight  
- Iron Head  
- Earthquake  

Eternatus @ Power Herb  
Ability: Pressure  
EVs: 4 HP / 252 SpA / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Sludge Bomb  
- Flamethrower  
- Meteor Beam  
- Dynamax Cannon  

Xerneas @ Power Herb  
Ability: Fairy Aura  
EVs: 168 Def / 252 SpA / 88 Spe  
Modest Nature  
IVs: 0 Atk  
- Geomancy  
- Moonblast  
- Thunder  
- Substitute  

Yveltal @ Heavy-Duty Boots  
Ability: Dark Aura  
EVs: 248 HP / 72 Def / 188 SpD  
Careful Nature  
- Knock Off  
- U-turn  
- Sucker Punch  
- Roost  

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