uh huh, by someone with gilgamesh avatar.
I have one person in mind, although i bet a lot of people here don't really know him.
Slayer from Guilty Gear.
this old man's gonna own you bitches
Also called Nightwalker, Noble One, hax (until he got nerfed in GG^AC)
Lord of vampires and the founder of the Assassin Guild, he has lived longer than human civilization. After a long time he came back to the human world to kill the former Guild leader Eddie (Zato-1), then he disbanded the Assassin Guild, calmed down the berserked Commander Gear Dizzy, helped The International Police Force by exposing fake bounty lists spread by the Post War Administration Bureau, kicked I-no's bitch ass, had some reunion fight with an old friend (Sol Badguy), then he went back to his mansion to have some afternoon tea with his wife,
all in one day. And he did them all because he was bored.
For power comparison, Sol Badguy can destroy a flying fortress with one shot and he played around with him like having a sparring match. Dizzy's Gamma Ray can obliterate an entire army and he blocked it with his bare hands. And I-no was the one who knocked Dizzy out and switched on her berserk mode.
Sorry I can't explain well, you really have to play the game to know the full story of his GARness and his awesome quotes.