I think you have a pretty solid base for a game here! Increasing your hand size and making it so you can play only 3 cards (or having a way to mess around with that) would be nice.
You'd probably get some great inspiration from Arco where you can launch projectiles that resolve over time.
The gameplay pattern seems to be to save a stick to get out of range and use everything else to attack. There should be some more variety, sooner to fix that.





