I recently came across a fun blog called, The Superest. Created by friends, Kevin Cornell and Matthew Sutter, these guys take turns trying to outdo the other in creating super heroes.
The Superest is a continually running game of My Team, Your Team. The rules are simple:
Player 1 draws a character with a power. Player 2 then draws a character whose power cancels the power of that previous character. Repeat.
Credit: Illustration by Kevin Cornell 2007
This is a fabulous site for exploring brainstorming and seeing the evolving ideas of two artists as they creatively seek to match wits and supers. If you visit the blog, be sure to take the link to the first hero then scroll up to see how each bests (or cancels out) the other.