I really love this concept, generally I like such turn based fighting games very much. Would be cool to combine it with rpg elements as well, that you have additional quests and need to kill them, and maybe collect items, that help you in later fights (weapons, armor or potions), or just items to sell for money
I had one bug though in the end, and that is that for the last fight, the forest bosses, as soon I killed the first one and the vampire showed up, I wasn't able to end the turn anymore.
Otherwise the fights were a bit easy