Unfortunately it will not actually draw the comic for you

Dealing with a bad case of writer’s block? Looking for that perfect plot for your upcoming 24-hour comic project? Brad Tibbils and Michael Avolio have just what you need — Plotboiler, a random generator of more than 40,000 individual storylines, with lists for characters, actions, genres and locations. You can even create your own plot or nominate a particularly good one to the “hall of fame.” (via)