Coalossal @ Heavy-Duty Boots  
Ability: Flame Body  
Tera Type: Rock  
EVs: 252 HP / 252 Def / 4 SpD  
Bold Nature  
- Flamethrower  
- Body Press  
- Rapid Spin  
- Will-O-Wisp  

Rhyperior @ Assault Vest  
Ability: Solid Rock  
Tera Type: Ground  
EVs: 248 HP / 172 SpD / 88 Spe  
Careful Nature  
- Earthquake  
- Smack Down  
- Fire Punch  
- Ice Punch  

Ogerpon-Cornerstone (F) @ Cornerstone Mask  
Ability: Sturdy  
Tera Type: Rock  
EVs: 252 Atk / 4 SpD / 252 Spe  
Jolly Nature  
- Swords Dance  
- Ivy Cudgel  
- Horn Leech  
- Trailblaze  

Glimmora @ Air Balloon  
Ability: Toxic Debris  
Tera Type: Rock  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Earth Power  
- Sludge Wave  
- Stealth Rock  
- Energy Ball  

Diancie @ Power Herb  
Ability: Clear Body  
Tera Type: Rock  
EVs: 248 HP / 8 Def / 252 SpA  
Quiet Nature  
IVs: 0 Atk / 0 Spe  
- Trick Room  
- Meteor Beam  
- Moonblast  
- Earth Power  

Iron Boulder @ Choice Scarf  
Ability: Quark Drive  
Tera Type: Rock  
EVs: 252 Atk / 4 SpD / 252 Spe  
Jolly Nature  
- Mighty Cleave  
- Zen Headbutt  
- Earthquake  
- Close Combat