>>85889257Doom is just a technomage. Initially, he worshipped science with a bit of gipsy magic from a trunk his mother left him. His initial armor was inlaid with offensive and defensive technology, like hidden pistols, shield generators, jet packs, finger blasters...
Then he made a pact with the Haazareth Three and gained greater magical powers. Then he spoke haughtily about his new masters and was consequently dragged to hell for a time, I'm not sure if he still has their blessing.
He occasionally steals the Power Cosmic or the powers of the Beyonder(s), but that's that.
Thanos now, I don't know. I only know he's gotten his pruny fingers onto an Infinity Glove now and again. With that, he could've done anything.