Pelipper @ Damp Rock  
Ability: Drizzle  
Tera Type: Ground  
EVs: 252 HP / 220 Def / 36 SpD  
Relaxed Nature  
- Scald  
- U-turn  
- Roost  
- Defog / Hurricane

Swampert-Mega @ Swampertite  
Ability: Swift Swim  
Tera Type: Water  
EVs: 252 Atk / 4 SpD / 252 Spe  
Jolly Nature  
- Waterfall / Liquidation
- Earthquake  
- Flip Turn  
- Ice Punch / Stealth Rock

Barraskewda @ Choice Band  
Ability: Swift Swim  
Tera Type: Water  
EVs: 252 Atk / 4 SpD / 252 Spe  
Adamant / Jolly Nature  
- Waterfall / Liquidation
- Flip Turn  
- Aqua Jet  
- Close Combat