Judas is the inner destructive energy within Ector Ross. However, Ector isn't coming back... It's just Judas now. Judas has black hair, black sclera with orange irises... They look exactly like black holes in space. He can become just dark energy if he wanted, his entire body being engulfed in darkness, but he chose a more physical appearance. Just like black holes, he can use a strong gravitational pull to keep you from running. Using black holes like a portal, or even time travel.