Nasty Plot (Delphox) @ Heavy-Duty Boots
Ability: Blaze
EVs: 252 SpA / 4 SpD / 252 Spe
IVs: 0 Atk
Tera Type: Fairy
Timid Nature
- Nasty Plot
- Fire Blast / Flamethrower 
- Psyshock
- Focus Blast / Encore / Substitute / Dazzling Gleam / Grass Knot

Scarf (Delphox) @ Choice Scarf
Ability: Magician  
Tera Type: Fighting  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Switcheroo  
- Flamethrower / Fire Blast / Overheat
- Psyshock  
- Focus Blast / Grass Knot

Specs (Delphox) @ Choice Specs
Ability: Magician  
Tera Type: Fighting  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Switcheroo  
- Flamethrower / Fire Blast / Overheat
- Psyshock  
- Focus Blast / Grass Knot

Other Options: Wish, Calm Mind, Sun Abuser