The vault is open and the world of Boss Monster™ will never be the same! Coming in mid-February 2021, this 64-card expansion features a treasure trove of gameplay variety:
With Vault of Villains, you can combine any of your Boss Monster sets, from the original to Rise of the Minibosses. Keep your game balanced while creating endless gameplay combinations. So step into the Vault of Villains ..and become the ultimate Boss!
Vault of Villains requires Boss Monster 1, 2 or 3 to play. It is fully compatible with all Boss Monster sets, and is the ultimate way to unite the sets you already own.