I absolutely love the idea The Superest, a game/blog that features drawings of superheroes.

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.

To experience the fun in order, start at the first hero.

http://www.thesuperest.com/