Eternatus @ Black Sludge  
Ability: Pressure  
EVs: 248 HP / 152 SpD / 108 Spe  
Timid Nature  
IVs: 0 Atk  
- Recover  
- Toxic  
- Dynamax Cannon  
- Light Screen  

Ho-Oh @ Heavy-Duty Boots  
Ability: Regenerator  
EVs: 248 HP / 152 Def / 92 SpD / 16 Spe  
Impish Nature  
- Brave Bird  
- Thunder Wave  
- Sacred Fire  
- Whirlwind  

Necrozma-Dusk-Mane @ Leftovers  
Ability: Prism Armor  
EVs: 252 HP / 120 Def / 136 Spe  
Impish Nature  
- Dragon Dance  
- Sunsteel Strike  
- Knock Off  
- Moonlight  

Yveltal @ Heavy-Duty Boots  
Ability: Dark Aura  
EVs: 248 HP / 76 SpD / 184 Spe  
Careful Nature  
- Roost  
- Knock Off  
- Defog  
- Foul Play  

Calyrex-Shadow @ Choice Scarf  
Ability: As One (Spectrier)  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Astral Barrage  
- Psyshock  
- Trick  
- Aromatherapy  

Groudon @ Leftovers  
Ability: Drought  
EVs: 248 HP / 116 Atk / 64 Def / 80 Spe  
Adamant Nature  
- Bulk Up  
- Precipice Blades  
- Stone Edge  
- Stealth Rock