A set of 14 cards designed for the digital port of Boss Monster, and offered as a physical bonus. Comprised of:

Epic Hero - The Princess
Boss - Greg
Boss - Explodo
Boss - Chase

and two apiece of:

Spell - Fireball
Trap Room - Demon Circle
Trap Room - The Clock Tower
Monster Room - Hydra's Mire
Monster Room - Spellslime Incubator

Some of these cards require the use of dice or tokens as they are designed to take advantage of the virtual nature of digital Boss Monster.