Diancie-Mega @ Diancite  
Ability: Clear Body  
Tera Type: Rock  
EVs: 252 SpA / 4 SpD / 252 Spe  
Naive Nature  
- Moonblast  
- Mystical Fire  
- Earth Power  
- Diamond Storm  

Shuckle @ Mental Herb  
Ability: Sturdy  
Shiny: Yes  
Tera Type: Bug  
EVs: 252 HP / 252 Def / 4 SpD  
Bold Nature  
IVs: 0 Atk  
- Stealth Rock  
- Sticky Web  
- Encore  
- Final Gambit  

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  
- Knock Off  

Arcanine-Hisui @ Heavy-Duty Boots  
Ability: Rock Head  
Shiny: Yes  
Tera Type: Fire  
EVs: 228 Atk / 28 Def / 252 Spe  
Jolly Nature  
- Flare Blitz  
- Head Smash  
- Morning Sun  
- Substitute  

Iron Boulder @ Psychium Z  
Ability: Quark Drive  
Shiny: Yes  
Tera Type: Rock  
EVs: 252 Atk / 4 SpD / 252 Spe  
Jolly Nature  
- Swords Dance  
- Zen Headbutt  
- Mighty Cleave  
- Close Combat  

Nihilego @ Power Herb  
Ability: Beast Boost  
Shiny: Yes  
Tera Type: Rock  
EVs: 80 HP / 176 SpA / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Meteor Beam  
- Sludge Wave  
- Thunderbolt  
- Grass Knot