Powers: Transforms into bipedal merman who can fire controllable streams of water from the stump-end of his left arm.
Bio: Hydron was on a team of magical supervillains called Salem's Seven. They were foes of the Scarlet Witch and the Fantastic Four. All seven were the children of Nicholas Scratch and the grandchildren of Agatha Harkness. They were humans with magic powers who could transform into fantastic creatures with super-powers.
#25 - 'The Resurrection of Nicholas Scratch, Part One: Omens and Portents' #26 - 'The Resurrection of Nicholas Scratch, Part Two: Doctor's Orders' #27 - 'The Resurrection of Nicholas Scratch, Part Three: Threshold of Revelations'