Brief History
Dynorr was an Alpha Centaurian alien who led an invasion force to Earth. Like Alpha Centaurians, Dynorr had sub-mariner physiology. He had trouble getting acclimated to Earth, claiming the waters were “foul” (polluted). He had superhuman strength, able to lift at least 25 tons. He had advanced weaponry, including a siphon device which could displace all fluids around another person.
Dynorr was eventually deposed by his own people but left Namor unable to breathe underwater for a while after their conflict.