Roaring Deef (Roaring Moon) @ Choice Scarf  
Ability: Protosynthesis  
Tera Type: Dragon  
EVs: 252 Atk / 4 SpD / 252 Spe  
Jolly Nature  
- Knock Off  
- U-turn  
- Iron Head  
- Dragon Claw  

Deefibuzz (Mandibuzz) (F) @ Heavy-Duty Boots  
Ability: Overcoat  
Tera Type: Dark  
EVs: 248 HP / 216 Def / 44 SpD  
Impish Nature  
- Foul Play  
- Roost  
- U-turn  
- Whirlwind  

Deef-Lu (Ting-Lu) @ Chople Berry  
Ability: Vessel of Ruin  
Tera Type: Dark  
EVs: 248 HP / 160 Atk / 28 Def / 72 SpD  
Impish Nature  
- Earthquake  
- Heavy Slam  
- Spikes  
- Ruination  

Deeftres-Galar (Moltres-Galar) @ Sitrus Berry  
Ability: Berserk  
Tera Type: Flying  
EVs: 248 HP / 96 SpA / 164 Spe  
Modest Nature  
IVs: 0 Atk  
- Agility  
- Air Slash  
- Nasty Plot  
- Taunt  

Deef-Alola (Muk-Alola) @ Shuca Berry  
Ability: Poison Touch  
Tera Type: Poison  
EVs: 248 HP / 28 Def / 136 SpD / 96 Spe  
Careful Nature  
- Knock Off  
- Poison Jab  
- Drain Punch  
- Haze  

Deefleye (Sableye) @ Roseli Berry  
Ability: Prankster  
Tera Type: Dark  
EVs: 248 HP / 84 Def / 176 SpD  
Calm Nature  
IVs: 0 Atk  
- Thunder Wave  
- Recover  
- Encore  
- Dazzling Gleam