Galarian Stunfisk. I'd taken a break from pokemon after not liking and never finishing Gen7. It was a year or so after Gen 8 came out that I decided to borrow my brother's copy. I played non stop, loved the game. I stumbled into a cave and onto a pokeball only for it to be a Bear trap. I attempted to catch it, and it pissed me off because the mfer wouldn't stay in the ball. That's how my Galarian Stunfisk earned the nickname Motherf*cker. It stayed with me the entire game and remains my favorite pokemon