Calyrex-Ice @ Grassium Z  
Ability: As One (Glastrier)  
Tera Type: Fire  
EVs: 248 HP / 252 Atk / 8 SpD  
Brave Nature  
IVs: 0 SpA / 0 Spe  
- Seed Bomb  
- Trick Room  
- Swords Dance  
- Glacial Lance  

Groudon-Primal @ Red Orb  
Ability: Drought  
Tera Type: Ground  
EVs: 248 HP / 68 Def / 192 SpD  
Impish Nature  
- Stealth Rock  
- Precipice Blades  
- Rock Tomb  
- Toxic  

Giratina-Origin @ Griseous Core  
Ability: Levitate  
Tera Type: Poison  
EVs: 248 HP / 152 Def / 8 SpA / 100 SpD  
Modest Nature  
IVs: 0 Atk  
- Draco Meteor  
- Hex  
- Defog  
- Thunder Wave  

Alomomola @ Heavy-Duty Boots  
Ability: Regenerator  
Tera Type: Fairy  
EVs: 4 HP / 252 Def / 252 SpD  
Relaxed Nature  
IVs: 0 Spe  
- Flip Turn  
- Toxic  
- Wish  
- Protect  

Ho-Oh @ Heavy-Duty Boots  
Ability: Regenerator  
Tera Type: Ground  
EVs: 248 HP / 192 Atk / 56 SpD / 12 Spe  
Adamant Nature  
- Sacred Fire  
- Brave Bird  
- Earthquake  
- Whirlwind  

Eternatus @ Power Herb  
Ability: Pressure  
Tera Type: Fairy  
EVs: 4 Def / 252 SpA / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Meteor Beam  
- Recover  
- Fire Blast  
- Dynamax Cannon