A Fish (Basculin) @ Choice Band  
Ability: Adaptability  
Tera Type: Water  
EVs: 252 Atk / 4 Def / 252 Spe  
Jolly Nature  
- Wave Crash  
- Liquidation  
- Ice Fang  
- Aqua Jet

Standard Basculin. It was the first thing paired with Pachirishu, because it abuses the Ground-types Pachirishu U-turns out of. It is the teams best check to Dragon Dance Charizard with Tera water Aqua Jet, which admittedly isn't great. If the opposing team has a Gogoat you want to go into Misdreavus right away and burn it, any other bulky waters Pachirishu can switch in on and click Nuzzle.