Nice graphics and art style. So far the matches have been relatively easy to win, that might be just me having been lucky when I had to choose which card to add to the deck and the likes, however so far I've not yet felt actually "struggling" to win a match.

Perhaps come kind of "difficulty level" which could add a multiplier to my foes' heatlh and attacks?

This really works well, and is very challenging. I like the approach to the card abilities over the deck style, however I would like more card customizability vs random choices. The overheating system is genius, and I can see where it could become too overpowered. And thanks for keeping the health design simple (at least so far).

This is great! Mixing shmup and turn-based tactics is a such a fun idea, and you've nailed the essence of both genres here. Coupled with absolutely beautiful art and UI, and banging music, this is really impressive!