Interested. Sounds familiar to an RPG I GM'd a few years back, only without the "Super" bit. Different website, obviously.

My requested power: Limited invisibility. Imagine the "HALO" Active Camo perk: You blend into your surroundings, but you become more visible as you move, and the invisibility only lasts 30 seconds or so. Anything being held is also invisible, but footsteps and breathing are still audible.
[img=http://static.gamesradar.com/images/mb/GamesRadar/us/Games/H/Halo%20Reach/Everything%20Else/Multiplayer%20Guide/Reach_Camo--article_image.jpg]