Special Powers: 3
Originally part of Alpha Flight, drawn and created by the great John Byrne, she also became an honourary member of the Avengers (then again, who isn't in the Marvelverse?). Unlike most of the other Marvel aquatic heroes who were Atlantean, Marrina was one of the Plodex, an alien species. This meant when she became pregnant with Namor's child, she turned into a huge, savage monster. Just like normal women then (I kid!).