Eternatus @ Leftovers  
Ability: Pressure  
EVs: 212 HP / 252 SpD / 44 Spe  
Calm Nature  
IVs: 0 Atk  
- Dynamax Cannon  
- Mystical Fire  
- Sludge Bomb  
- Recover  

Ho-Oh @ Heavy-Duty Boots  
Ability: Regenerator  
EVs: 248 HP / 252 Def / 8 Spe  
Impish Nature  
- Sacred Fire  
- Thunder Wave  
- Defog  
- Brave Bird  

Necrozma-Dusk-Mane @ Rocky Helmet  
Ability: Prism Armor  
EVs: 248 HP / 252 Def / 8 Spe  
Impish Nature  
- Stealth Rock  
- Sunsteel Strike  
- Earthquake  
- Morning Sun  

Groudon @ Life Orb  
Ability: Drought  
EVs: 64 HP / 252 Atk / 192 Spe  
Adamant Nature  
- Swords Dance  
- Precipice Blades  
- Stone Edge  
- Aerial Ace  

Ho-Oh @ Heavy-Duty Boots  
Ability: Regenerator  
EVs: 248 HP / 8 Def / 252 SpD  
Careful Nature  
- Flare Blitz  
- Defog  
- Toxic  
- Whirlwind  

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