Couldn't we technically save about 50 posts and just say that "RANGED BRICK FIGURE X W/ RUNNING SHOT WHO DOESN'T ALREADY HAVE PSYCHIC BLAST" would be the awesome with the key?
Fixed it for you. That pretty much sums up the best possible candidates to use the Scorpio Key, across the board.
I still like my Storm suggestion, as it plus outdoor terrain would just make her crazy good for her cost.
Rookie Jade, Veteran Hawk, Crisis Nightwing, The Wizard Shazam!, Howard the Duck (twice in one tourney), #040 Captain America, Lockheed, Dr. Donald Blake, Chase Odin, Thor and Loki, DC10 Wally West Flash, Frog of Thunder (twice in one tourney), Frost Giant, Victor Mancha, M10 Storm