Thank you, I'm glad that you liked it. And yeah, I agree. You can actually cancel using an ability if you right click instead of left click, but it still doesn't reset the dice you used so you can kind of screw yourself. An undo option would be interesting, and is probably needed in the post-jam version I've been working on- as it has a lot more enemies that punish misusing your dice.
UI cleanup/clarity is another thing I've been working on too. Having to check the instructions page to see what your abilities do is probably not ideal lol.