Nice game! it looked nice, played well and was a unique idea! I did have some difficulty playing due to trying to make matches while also controlling my character. I don't know if that was intended. If not, perhaps the grid should be centered or closer to the action, because as it was I was essentially multi-tasking and pretty bad at it. Without instructions it was hard to know If I was playing right/optimally, but I stuck around for a decent while (dying was tankfully hard). Also, not sure if programmer art, but it had a certain charm, liked how it all looked and meshed together!

Overall it was a great idea that might be worth going further with :)

An unusual, but surprisingly fun combination! Panically shuffling card signs while dodging enemies until the ability to retaliate felt like a great loop. Would love to see the two more... joined together? I kept looking away from the arena oh gosh I'm playing candy crush while driving.
Found that I was getting too much energy and too few cards, though. Matching 5 helped but still felt tedious.

Regardless, I still enjoyed it. Would love to see it more fleshed out and with more content!

Also trying to match when the timer was going made it bug out, might wanna look into that.

I understood it this way: make rows > gain points> select the cards you want o use > attack the enemy.

It is an interesting merge of gamplays, but it can be a bit overwhelming at first, maybe a simple tutorial scene where you complete a row, select a power and use it.

Even if it lacks a bit of explanation and the game doesn't seem to drop many cards after doing rows and columns the idea is phenomenal, I really think you should work this into something bigger