And there came a day unlike any other, when Earths Mightiest Heroes were united against a common threat! On that day The Avengers were born to fight foes that no single hero could withstand! Join the Avengers and battle against the Masters of Evil, or fight for victory as the Squadron Supreme. Bring Justice like Lightning with the Thunderbolts, or rewrite history as Kang the Conqueror, Master of Space and Time! Each box contains 4 unique fully painted metal deck boxes featuring art by Alex Ross, along with 4 booster packs and 4 exclusive variant art cards.