Planetman is a strong netnavi who appeared during Megaman Nt Warrior grave arc. He has two planets that revolve around him and attack you. He also has airplanes that can shoot you. In Battle Network 3 he became Leader of WWW. Of course Serenade is another navi who fought Bass however in the manga she didn’t live. Serenade does have vast powers and can reflect program advances. Serenade wins.