Arceus-Water @ Splash Plate  
Ability: Multitype  
Tera Type: Fairy  
EVs: 248 HP / 244 Def / 16 Spe  
Bold Nature  
IVs: 0 Atk  
- Calm Mind  
- Judgment  
- Recover  
- Ice Beam  

Ferrothorn @ Leftovers  
Ability: Iron Barbs  
Tera Type: Water  
EVs: 248 HP / 8 Def / 252 SpD  
Sassy Nature  
IVs: 0 Spe  
- Power Whip  
- Spikes  
- Leech Seed  
- Knock Off  

Eternatus @ Life Orb  
Ability: Pressure  
Tera Type: Dragon  
EVs: 4 Def / 252 SpA / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Dynamax Cannon  
- Sludge Bomb  
- Fire Blast  
- Recover  

Zygarde @ Leftovers  
Ability: Power Construct  
Tera Type: Water  
EVs: 252 HP / 252 Def / 4 SpD  
Impish Nature  
- Coil  
- Glare  
- Thousand Arrows  
- Rest  

Marshadow @ Choice Band  
Ability: Technician  
Tera Type: Ghost  
EVs: 252 Atk / 4 Def / 252 Spe  
Jolly Nature  
- Poltergeist  
- Spectral Thief  
- Shadow Sneak  
- Low Kick  

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