Fire Wallbreaker (Chi-Yu) @ Choice Specs  
Ability: Beads of Ruin  
Tera Type: Dark  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Overheat  
- Dark Pulse / Psychic
- Fire Blast / Flamethrower
- Psychic / Dark Pulse

Fire Booster (Chi-Yu) @ Heavy-Duty Boots
Ability: Beads of Ruin  
Tera Type: Dark  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Flamethrower / Fire Blast
- Dark Pulse / Psychic
- Flame Charge
- Nasty Plot