He has attacks like Dismantle which slashes anything and Cleave which slices anything in its path making it a one shot move. He has a domain expansion called Malevolent Shrine which cuts anything in a 180m radius. He is the king of curses. The most strongest being ever. He used to be a Jujutsu Sorcerer however his fellow sorcerers took him down. Itadori Yuji looks like Sukuna since he was meant to be his vessel. He does his moves without any blade.