Farenheit and Rage Potion are currently tied.
The good thing about these choices are that one has an impressive synergy with several cards (Rage Potion), while the other can incorporate a table to help fill out the article in the wiki section (Farenheit). In either case, these two choices are much better than say, Explosion, which is pretty generic as a whole to write about. ^^;;;
Hoping that someone can be the tiebreaker so that I (or BS) can starting analyzing.