Isaac’s fear of his maniacal mother has forced him into musty basements, fetid caves, gloomy depths and worse. Now, everyone’s favorite crying child finds himself smack dab in the middle of the RoA battlefield with the Binding of Isaac Pack! This pack includes an Isaac boulder, 3 in-game avatars (featuring Isaac, Blue Baby and Azazel) and 3 new army banners to adorn your battlefield and units.