Powers: Xemnu is capable of projecting hypnotic rays, which can penetrate most materials and be projected over great distances (large enough to encompass the Earth), although the range seems to be dependent on Xemnu's absorbed energy. These rays make exposed individual obedient to his will, and even makes them view Xemnu as a wise and benevolent leader. Contact with Xemnu's body can grant immunity from his hypnotic rays. Xemnu also seems to be able to command normally inanimate machinery.
Xemnu is capable of reforming himself from scattered atoms by taking over a host body. This victim seems to gradually become his new body, similar in appearance and to his old body, and not just a temporary host.