Mordru (LOSH era) vs. Superboy Prime

Prime laughed off a blast from Mordru, but what would happen if the Dark Lord unleashed his full power on Prime? Would Prime no-sell it all and wind up killing the old man to death in spite of his immortality? Or would Mordru prevail?

All feats are valid. Random Encounter.

Mordru wins. The same people who claim Prime is immune to magic against the Odinpower won't set foot in this thread.