Instead of just having all the treasure icons (like Dragon Hatchery from the original Boss Monster), or being an advanced room that did basically the same thing, this card can add a lot of strategy to a game. It is tempting to use it to switch with an oponents high-damage room, but they can switch it with any non-advanced room you have the next time they have a hero. As it has all four treasure icons, it is also tempting to keep to lure more heroes. We replaced both of our Hatchling's Hoard cards with these instead. (We found that Hatchling's Hoard was just too good of a card, dealing 2 damage and having all treasure icons.)