Very neat combination of card game and tile game. Being able to both play and move cards around the playfield with the allotted energy was interesting enough in its own right - having the cards scale up and down on top of that was really cool.
Something else that I think you did really well was all the smaller quality-of-life stuff, like snapping the tiles into place, visualizing the lines of attack, etc. I think the visuals and audio could be a bit better, but they get the job done, and the core gameplay isn't made any worse for it. Well done!