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

Necrozma-Dusk-Mane @ Leftovers  
Ability: Prism Armor  
Tera Type: Poison  
EVs: 248 HP / 120 Def / 140 SpD  
Bold Nature  
- Morning Sun  
- Calm Mind  
- Iron Defense  
- Stored Power  

Giratina-Origin @ Griseous Core  
Ability: Levitate  
Tera Type: Dark  
EVs: 200 HP / 252 Atk / 40 SpD / 16 Spe  
Adamant Nature  
- Defog  
- Dragon Tail  
- Poltergeist  
- Shadow Sneak  

Hatterene @ Focus Sash  
Ability: Magic Bounce  
Tera Type: Fairy  
EVs: 252 HP / 164 Def / 40 SpA / 52 SpD  
Bold Nature  
- Healing Wish  
- Future Sight  
- Nuzzle  
- Draining Kiss  

Ditto @ Choice Scarf  
Ability: Imposter  
Tera Type: Ghost  
EVs: 252 HP / 4 SpA / 252 Spe  
Naive Nature  
IVs: 30 Atk  
- Transform  

Kyogre @ Choice Scarf  
Ability: Drizzle  
Tera Type: Water  
EVs: 4 Def / 252 SpA / 252 Spe  
Timid Nature  
- Ice Beam  
- Thunder  
- Origin Pulse  
- Water Spout