What is Omega Effect?
The Omega Effect is a strange force of entropy, perhaps a destructive side to the often creative nature of the Source.
It is Darkseid's possession of the Omega Effect that allows him to fire his Omega Beams from his eyes. These beams are capable of vaporizing, erasing, as energy blasts/energy beams or transmuting any form of matter, living or non-living. They can send/retrieve something from different places, times, dimensions, and even universes.