I like the artstyle! It has a nice vibe. The audio is fine.
For the gameplay: I like turnbased cardgames, but i was not always sure what was happening with each card. The selection of the cards did also not work a 100 percent and sometimes my mana was refilled without ending the turn. The feedback if the "attack" was good was missing completly (or i am blind and i didnt saw it).
But overall nice idea, with a little more polish and playerfeedback could be much more enjoyable.