Calyrex-Shadow @ Spell Tag  
Ability: As One (Spectrier)  
EVs: 252 SpA / 4 SpD / 252 Spe  
Modest Nature  
IVs: 0 Atk  
- Substitute  
- Encore  
- Astral Barrage  
- Nasty Plot  

Ferrothorn @ Leftovers  
Ability: Iron Barbs  
EVs: 252 HP / 252 Def / 4 SpD  
Impish Nature  
- Leech Seed  
- Spikes  
- Iron Defense  
- Body Press  

Necrozma-Dusk-Mane @ Leftovers  
Ability: Prism Armor  
EVs: 252 HP / 224 SpD / 32 Spe  
Careful Nature  
- Stealth Rock  
- Moonlight  
- Iron Head  
- Thunder Wave  

Eternatus @ Heavy-Duty Boots  
Ability: Pressure  
EVs: 252 HP / 120 Def / 40 SpD / 96 Spe  
Timid Nature  
- Recover  
- Sludge Bomb  
- Flamethrower  
- Dragon Tail  

Yveltal @ Heavy-Duty Boots  
Ability: Dark Aura  
EVs: 240 HP / 16 SpD / 252 Spe  
Jolly Nature  
- Knock Off  
- Taunt  
- Defog  
- Roost  

Kyogre @ Leftovers  
Ability: Drizzle  
EVs: 252 HP / 120 Def / 136 Spe  
Modest Nature  
IVs: 0 Atk  
- Calm Mind  
- Rest  
- Sleep Talk  
- Scald