Fun art and simple concept! :D
Although, once I realized you just needed to match their Swords with my Shields, then focus Swords on all my other dice, it became a little bit of a trog- which hit at about the 3rd Level. I didn't need to heal at all with that strat- at least not until the Level before the last because I decided to just focus on 5x Swords and Healing any HP I lost between those attacks.
Despite that, there's plenty of room for expansion- either by adding mechanics like in "Dicey Dungeons" that manipulate rolls, giving abilities to change up the combat, or adding new faces.