Groudon @ Leftovers  
Ability: Drought  
Tera Type: Water  
EVs: 240 HP / 252 Def / 16 Spe  
Impish Nature  
- Earthquake  
- Will-O-Wisp  
- Stone Edge  
- Spikes  

Calyrex-Ice @ Heavy-Duty Boots  
Ability: As One (Glastrier)  
Tera Type: Fire  
EVs: 248 HP / 252 Atk / 4 Def / 4 SpD  
Brave Nature  
IVs: 0 Spe  
- Glacial Lance  
- Swords Dance  
- Trick Room  
- High Horsepower  

Arceus-Fairy @ Pixie Plate  
Ability: Multitype  
Tera Type: Water  
EVs: 240 HP / 252 Def / 16 Spe  
Bold Nature  
IVs: 0 Atk  
- Judgment  
- Thunder Wave  
- Stealth Rock  
- Recover  

Koraidon @ Choice Scarf  
Ability: Orichalcum Pulse  
Tera Type: Ghost  
EVs: 252 Atk / 4 Def / 252 Spe  
Jolly Nature  
- Close Combat  
- Outrage  
- U-turn  
- Flare Blitz  

Eternatus @ Life Orb  
Ability: Pressure  
Tera Type: Dragon  
EVs: 4 Def / 252 SpA / 252 Spe  
Timid Nature  
- Dynamax Cannon  
- Sludge Bomb  
- Fire Blast  
- Recover  

Ho-Oh @ Heavy-Duty Boots  
Ability: Regenerator  
Tera Type: Fairy  
EVs: 248 HP / 252 Def / 8 SpD  
Impish Nature  
- Sacred Fire  
- Brave Bird  
- Whirlwind  
- Recover