Groudon @ Red Orb  
Ability: Drought  
EVs: 248 HP / 140 Def / 116 SpD / 4 Spe  
Relaxed Nature  
- Precipice Blades  
- Spikes  
- Toxic  
- Overheat  

Eternatus @ Air Balloon  
Ability: Pressure  
Tera Type: Fairy  
EVs: 80 HP / 252 SpD / 176 Spe  
Timid Nature  
IVs: 0 Atk  
- Recover  
- Toxic Spikes  
- Sludge Bomb  
- Dynamax Cannon  

Chien-Pao @ Choice Band  
Ability: Sword of Ruin  
Tera Type: Dark  
EVs: 24 HP / 252 Atk / 16 Def / 216 Spe  
Jolly Nature  
- Crunch  
- Ice Spinner  
- Ice Shard  
- Sucker Punch  

Necrozma-Dusk-Mane @ Ultranecrozium Z  
Ability: Prism Armor  
EVs: 88 HP / 244 Def / 36 SpA / 140 Spe  
Bold Nature  
- Stealth Rock  
- Morning Sun  
- Photon Geyser  
- Rock Tomb  

Alomomola @ Heavy-Duty Boots  
Ability: Regenerator  
Tera Type: Poison  
EVs: 248 HP / 252 Def / 8 SpD  
Relaxed Nature  
IVs: 0 SpA / 0 Spe  
- Flip Turn  
- Toxic  
- Wish  
- Knock Off  

Ho-Oh @ Heavy-Duty Boots  
Ability: Regenerator  
Tera Type: Grass  
EVs: 248 HP / 176 Atk / 20 Def / 56 SpD / 8 Spe  
Adamant Nature  
IVs: 0 SpA  
- Sacred Fire  
- Brave Bird  
- Defog  
- Thunder Wave