Calyrex-Shadow @ Choice Specs  
Ability: As One (Spectrier)  
EVs: 60 Def / 196 SpA / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Astral Barrage  
- Psyshock  
- Trick  
- Nasty Plot  

Necrozma-Dusk-Mane @ Leftovers  
Ability: Prism Armor  
EVs: 252 HP / 136 SpD / 120 Spe  
Careful Nature  
- Iron Head  
- Morning Sun  
- Thunder Wave  
- Stealth Rock  

Eternatus @ Haban Berry  
Ability: Pressure  
EVs: 164 HP / 252 SpD / 92 Spe  
Timid Nature  
IVs: 0 Atk  
- Dynamax Cannon  
- Toxic  
- Recover  
- Flamethrower  

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

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

Marshadow @ Focus Sash  
Ability: Technician  
EVs: 252 Atk / 4 SpD / 252 Spe  
Jolly Nature  
- Spectral Thief  
- Shadow Sneak  
- Low Kick  
- Ice Punch