Poke!Regulus has to be like. A Ratatta. One of the early Route 1 Pokémon that’s also just trash, lmao. He never evolved or tried to better himself either.
Ability: Hustle. He’s very smug about having a Hidden Ability, even though it means his accuracy is shit.
Moveset: Tail Whip, Quick Attack, Bite, Laser Focus. All learned naturally before he gained his authority, all learned at a very low level because he stopped training immediately afterwards.
He never even uses any of his moves anymore. He only uses his Authority and nothing else. The minute he was stripped of it and pitted against Reinhard in his first actual battle in ages, he was a pathetic sight.
He knows Final Gambit, because he was born with it — a gift from his parents. He wasn’t able to use it in his fight against Reinhard, partly out of cowardice and partly out of resentment towards his parents.