Pick your Heroes, rescue your friends, and win enough battles to defeat Thanos! Battleworld is a revolutionary, cooperative, expandable, collectible adventure game featuring dozens of characters from across the Marvel Universe! As you play, crack open mysterious Thanostones to reveal the characters inside. There are more than 30 new characters to collect! This Mega Pack jumpstarts your collection with six characters, including two mystery Heroes trapped in Thanostones and an exclusive Vision (Classic) with foil card!