On May 3rd will be Free Comic Book Day, a day in which participating comic book shops in North America give away free products to visitors. WizKids, publisher of various collectible miniatures games, will produce a special Iron Man HeroClix figure for the occasion. According to WizKids’ announcement, the Iron Man figure will also feature a special new power, Invincible, building on his Boot Jets, Repulsors, Cybernetic Strength, Servo-Amplified Punch, Full Power, Force Field, and Shield.