Gabriel Belmont in the Castlevania LoS games

He starts off (like most games) quite powerless but the more stages you play he feels alot more fast and nimble in terms of movement and he feels heavy and strong in terms of his combat

Not only that, in the game’s lore and story he quite literally sets off on a quest to defeat (kill, mostly) the dark versions of the founders of the Brotherhood of Light as they’ve ascended with their good selves to heaven but their dark selves (mainly all the evil and bad shit) stayed on earth to become dark lords. By the time the second game comes about, Gabriel has defeated every dark lord and practically became an immortal demigod vampire and is essentially said to be unkillable because “god is too afraid of him to let him die”. Not only that, before he can kill himself to finally be laid to rest as he wanted (with his silver combat cross from the first game which is the only thing that could kill him) he literally defeats Satan himself

TLDR; a man so strong, he is feared by god and he defeated satan himself, that could only be killed by himself after centuries of wanting to die