Set 2 has Door and Treasure boxes (with different art!), then adds a third box big enough for all the Dungeon cards we've made so far, the Seals from Munchkin Apocalypse, and room for expansion! Plus, three more unique cards!
One of the cards will be a Dungeon.
Note that this set does not include the two cards from the original Boxes of Holding.
Part of the Munchkin series.