Garthanos
Arcadian Knight
It's such an odd-ball utility as well in that it's one of the only (only?) non-combat power that I've come across. Flavor-wise one of the coolest powers in the game.
Its a Doctor Strange Power.... you know that WOTC is wooing Marvel for a genre game for 4e .. I find it rather easy to define an unusually large number of Marvel Superheros by blurring my eyes in 4e.