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

Mesprit @ Covert Cloak  
Ability: Levitate  
Tera Type: Fairy  
EVs: 248 HP / 8 SpA / 252 Spe  
Timid Nature  
- Encore  
- Nasty Plot  
- Psyshock  
- Draining Kiss  

Regirock @ Leftovers  
Ability: Clear Body  
Tera Type: Dragon  
EVs: 248 HP / 16 Def / 200 SpD / 44 Spe  
Impish Nature  
- Stealth Rock  
- Stone Edge  
- Body Press  
- Iron Defense  

Floatzel @ Choice Band  
Ability: Water Veil  
Tera Type: Water  
EVs: 252 Atk / 4 SpD / 252 Spe  
Jolly Nature  
- Wave Crash  
- Flip Turn  
- Aqua Jet  
- Double-Edge  

Whimsicott @ Choice Specs  
Ability: Infiltrator  
Tera Type: Fairy  
EVs: 248 SpA / 8 SpD / 252 Spe  
Timid Nature  
- Moonblast  
- Energy Ball  
- U-turn  
- Switcheroo  

Muk @ Heavy-Duty Boots  
Ability: Sticky Hold  
Tera Type: Dark  
EVs: 248 HP / 196 Def / 56 SpD / 8 Spe  
Careful Nature  
- Knock Off  
- Poison Jab  
- Zen Headbutt  
- Toxic Spikes