Board Thread:News and Announcements/@comment-26915466-20181031010809/@comment-25295648-20181202125545

Omega Beams are dependant on the Avatar, Darkseid can dile it's yield and effect, IIRC I hear beings with a sufficient amount of will can endure it (might be wrong here), and Superman is given a lot of cosmic protection plot shielding by beings like Spectre.