Really love the art style!
Combining turn-based combat and alchemy deck building/collecting is a fresh and fun concept.
Also, the designs of opponents are fun (I really loved worm haha)
Feedback:
I think the first tutorial could be more step-by-step, with actions in-between parts of the tutorial.
(ex: Explain drag & drop element, let player do it, and then explain AP, etc / take damage, and then explain HP etc etc)
Other than that, I think you have a solid game! I'd love to see more of it in the future :3