This game has a surprising amount of depth for an auto-battler with only three card types. At first, I was a little frustrated by the lack of player control, but after a couple tries, I started to really enjoy the strategy of ordering cards in a way that kept me safe while I reshuffled.
Also, the UI is really nice! There's a lot of small details that do a lot to improve clarity - the active card being visually emphasized, the brief red border on taking damage, and the Deck + Discard displays. The only thing that lacks a bit of clarity, to me, is the movement of the cards. The cards teleporting to the next position is a little disorienting; I think a simple animation of the card sliding to its next spot would be a lot clearer, and also look cool!
Had a lot of fun with this, great job!