It looks like comics about any of their games are eligible:
http://us.blizzard.com/en-us/community/ ... rules.html
Blizzard's comic contest!
Blizzard's comic contest!
Jude's Wondrous Universe
http://www.wondrousuniverse.com" onclick="window.open(this.href);return false;
http://www.wondrousuniverse.com" onclick="window.open(this.href);return false;