Blissey (F) @ Ampharosite  
Ability: Natural Cure  
EVs: 252 HP / 252 Def / 4 SpD  
Bold Nature  
IVs: 0 Atk  
- Stealth Rock  
- Shadow Ball  
- Toxic  
- Soft-Boiled  

Slowbro @ Sablenite  
Ability: Regenerator  
EVs: 252 HP / 252 Def / 4 SpD  
Bold Nature  
IVs: 0 Atk  
- Teleport  
- Ice Beam  
- Scald  
- Slack Off  

Lunala @ Heavy-Duty Boots  
Ability: Shadow Shield  
EVs: 196 HP / 144 Def / 164 SpA  
Modest Nature  
IVs: 0 Atk  
- Calm Mind  
- Moongeist Beam  
- Ice Beam  
- Roost  

Regieleki @ Altarianite  
Ability: Transistor  
EVs: 252 Atk / 200 SpA / 56 Spe  
Naughty Nature  
- Volt Switch  
- Rapid Spin  
- Extreme Speed  
- Explosion  

Solgaleo @ Metagrossite  
Ability: Full Metal Body  
EVs: 252 Atk / 4 SpD / 252 Spe  
Jolly Nature  
- Sunsteel Strike  
- Psychic Fangs  
- Crunch  
- Morning Sun  

Eternatus @ Metronome  
Ability: Pressure  
EVs: 8 HP / 248 Def / 20 SpA / 232 Spe  
Modest Nature  
IVs: 0 Atk  
- Sludge Bomb  
- Dragon Pulse  
- Flamethrower  
- Recover