Diancie-Mega @ Choice Specs  
Ability: Pixilate  
Tera Type: Rock  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Rash Nature  
- Boomburst  
- Extreme Speed  
- Earth Power  
- Revelation Dance  

Arceus-Ground @ Covert Cloak  
Ability: Ice Scales  
Tera Type: Ground  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe  
Impish Nature  
- Precipice Blades  
- Tidy Up  
- Strength Sap  
- Spirit Shackle  

Blissey (F) @ Leftovers  
Ability: Magic Guard  
Tera Type: Normal  
EVs: 252 HP / 252 Def / 252 SpA / 252 SpD / 248 Spe  
Calm Nature  
IVs: 0 Atk  
- Soft-Boiled  
- Teleport  
- Ruination  
- Topsy-Turvy  

Dondozo @ Covert Cloak  
Ability: Fur Coat  
Tera Type: Water  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD  
Relaxed Nature  
IVs: 0 Spe  
- Flip Turn  
- Strength Sap  
- Will-O-Wisp  
- Stone Axe  

Eternatus @ Black Sludge  
Ability: Unaware  
Tera Type: Poison  
EVs: 252 HP / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Torch Song  
- Dragon Energy  
- Shore Up  
- Glare  

Chansey (F) @ Eviolite  
Ability: Imposter  
Tera Type: Normal  
EVs: 252 HP / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Bold Nature  
IVs: 0 Atk  
- Heal Bell  
- Mean Look  
- Soft-Boiled  
- Topsy-Turvy