On the first day of Amazon's Prime Big Deal Days, the Marvel Hulkbuster set was a whopping $250 off, and although it's now only $132 off, we still think it's the best Lego deal available right now.

the mansion is one of Marvel's biggest Lego sets ever. Only four Marvel sets currently available are bigger, including the incredible Avengers Tower set, and the frequently discounted Hulkbuster.

Build a giant (over 3 feet tall!) posable Hulkbuster with light-up features from Avengers: Age of Ultron. This LEGO set (over 4,000 pieces!) is a complex build for Marvel fans and a showstopper ...