Groudon @ Custap Berry  
Ability: Drought  
Tera Type: Water  
EVs: 240 HP / 236 Def / 32 Spe  
Impish Nature  
- Stealth Rock  
- Spikes  
- Precipice Blades  
- Stone Edge  

Arceus-Water @ Splash Plate  
Ability: Multitype  
Tera Type: Poison  
EVs: 216 HP / 100 Def / 192 Spe  
Bold Nature  
IVs: 0 Atk  
- Calm Mind  
- Judgment  
- Psyshock  
- Recover  

Ditto @ Choice Scarf  
Ability: Imposter  
Shiny: Yes  
Tera Type: Steel  
EVs: 248 HP / 8 Atk / 252 Def  
Relaxed Nature  
IVs: 0 Spe  
- Transform  

Koraidon @ Life Orb  
Ability: Orichalcum Pulse  
Tera Type: Ghost  
EVs: 252 Atk / 4 SpD / 252 Spe  
Jolly Nature  
- Swords Dance  
- Scale Shot  
- Close Combat  
- Flare Blitz  

Kingambit @ Air Balloon  
Ability: Supreme Overlord  
Tera Type: Dark  
EVs: 88 HP / 252 Atk / 168 Spe  
Adamant Nature  
- Swords Dance  
- Kowtow Cleave  
- Iron Head  
- Sucker Punch  

Ho-Oh @ Heavy-Duty Boots  
Ability: Regenerator  
Tera Type: Fairy  
EVs: 248 HP / 184 Def / 56 SpD / 20 Spe  
Careful Nature  
- Sacred Fire  
- Brave Bird  
- Recover  
- Whirlwind