Step 1.) Check the comic you're writing to see if there's an overarching story in progress. If there is, put it on hold until the end of the summer.
Step 2.) Find an existing character (one who isn't necessarily connected to the comic) and give them a magic hammer with a merchandise-friendly redesign attached. Don't worry about wether or not the character will actually be merchandised.
Step 3.) Give that character a new name along the lines of "(Name), Breaker of (Thing)". The first name should be something punchy, even if it doesn't make sense in any known language. The second should be something that sounds ominous.
Step 4.) Now that you have your (Breaker), have them start randomly killing (Random Civilians). Don't worry about giving them a credible motivation, the (Random Runic Dialogue) should make them seem ominous enough to compensate.
Step 5.) Have the comic's existing (Hero/Heroes) drop everything they were doing to try and stop the Breaker of Something.
Step 6.) Show how no matter what powers the cast have, or what strategies they use, the (Hero/Heroes) do anything against (Breaker). At the same time, NEVER have (Breaker) inflict any lasting damage upon anyone who counts, beyond (Random Civilians)
Step 7.) Between the action scenes, intersperse talking heads of (Hero/Heroes) whining and crying about how they can't beat (Breaker). If you wish, you can connect it to some sort of larger sociological point about the economy or the war on terror or whatnot. Don't go too far with this point, lest you get away from the Formula.
Step 8.) Resume your comic's normal storyline after the Fear Itself event is over, hoping your existing readers haven't gotten totally sick of this shit.
