BOOM BOOM POW (Swellow) @ Choice Specs  
Ability: Scrappy  
Tera Type: Normal  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
- Boomburst  
- U-turn  
- Hurricane  
- Heat Wave  

Guts Attacker (Swellow) @ Flame Orb  
Ability: Guts  
Tera Type: Normal  
EVs: 252 Atk / 4 SpD / 252 Spe  
Jolly Nature  
- Facade  
- Brave Bird  
- U-turn / Roost
- Roost / Quick Attack

Mixed (Swellow) @ Focus Sash / Life Orb  
Ability: Guts  
Tera Type: Normal  
EVs: 160 Atk / 96 SpA / 252 Spe  
Naive Nature  
- Work Up  
- Boomburst  
- Reversal / Brave Bird
- Heat Wave / Brave Bird / Hurricane