"Rumble is a fast-paced game of superhero combat, with players bidding energy points on attack and defense, attempting to outguess their opponents and knock them out of the game.
Heroes can be imbued with stock super-powers selected from the online archive, or with powers invented by the players at the start of each game - Rumble is as much about the clash and interaction of eclectic super-powers as it is about thoughtful bidding and bluffing."
An ostensibly simple bidding game from TyrethAli, made dynamic by the gloriously freeform power-creation phase (which can bring plenty of argument over the specifics of power interaction and precedence, in true Nomic style). Very much the "fitting random ideas into a strict and simple game universe" creativity element of Nomic, in a dramatic and fairly throwaway context.
Full rules and an archive of past-game super-powers can be found at 
http://kevan.org/rumble.cgi