Diancie-Mega @ Diancite  
Ability: Clear Body  
Tera Type: Water  
EVs: 4 Atk / 252 SpA / 252 Spe  
Hasty Nature  
- Headlong Rush  
- Magma Storm  
- Electro Drift  
- Strength Sap  

Regirock @ Black Sludge  
Ability: Clear Body  
Tera Type: Rock  
EVs: 252 HP / 252 Def / 4 SpD  
Relaxed Nature  
IVs: 29 Spe  
- Body Press  
- Mortal Spin  
- Shore Up  
- Teleport  

Dragapult @ Ghostium Z  
Ability: Clear Body  
Tera Type: Dragon  
EVs: 252 Atk / 4 Def / 252 Spe  
Jolly Nature  
- Close Combat  
- Poltergeist  
- Strength Sap  
- Swords Dance  

Roserade @ Choice Specs  
Ability: Technician  
Tera Type: Grass  
EVs: 252 SpA / 4 SpD / 252 Spe  
Modest Nature  
- Tachyon Cutter  
- Water Shuriken  
- Flip Turn  
- Trick  

Blissey (F) @ Leftovers  
Ability: Natural Cure  
Tera Type: Normal  
EVs: 4 HP / 252 Def / 252 SpD  
Sassy Nature  
IVs: 0 Atk / 0 Spe  
- Parting Shot  
- Spectral Thief  
- Shore Up  
- Glare  

Alomomola @ Leftovers  
Ability: Regenerator  
Tera Type: Water  
EVs: 252 HP / 252 Def / 4 SpD  
Relaxed Nature  
IVs: 0 Spe  
- Flip Turn  
- Strength Sap  
- Stone Axe  
- Glare