Hello. The game looks really good, characters, UI, sounds. I think game play a bit boring because there is no much variety, you just shoot spells, there is no randomness or risk and rewards abilities. Although I can't say much because I stuck on mushrooms, I just couldn't deal enough damage.
One thing I'd suggest, is to add sound effect or text message when you're out of mana. Because I didn't noticed mana and thought it's bug that I cannot use cards.
About bugs. Once I stuck, 'end' command did nothing. The only thing I remember doing before that happened, was using heal item.
I noticed that heal item, at lest small one, it heals percent from current health, not max health. Is that a bug?