This project is a test of a battle mechanic. I have many ideas on ways to add to it but I'd like your feedback on whether or not the core mechanic is fun, interesting, or at least seems to have potential. There isn't a tutorial in the playable version itself but the screenshot covers pretty much all the information.
Side note: At the moment the Blue Critter is a fighter and the Green Hat is a healer. All of Blue's cards with action costs less than 5 do the same thing. The same goes for Green's cards under 5.