I gave the game a solid crack, and visually the game was pretty solid, but I am unsure which assets were produced by you and which were downloaded externally. In terms of gameplay, it was a cool concept! I can imagine it becoming a very clean mechanic if you expanded on it, so well done on that front! 

The fire theme was a bit of a stretch for me and in terms of multi use, I feel like just applying that term to mana means you can practically make any game fit that theme so it didn't feel like the most creative use compared to some other projects

All in all, we could definitely see areas that would've taken a lot of effort from a solo team, so that in itself is something to be proud of!

I gave this game a try, but I honestly don't see how this fits the theme. It was also a bit confusing what I needed to do after the main menu. I just clicked on a dude, and then I was in the game. Ok, quick enough, but then I started trying to understand what I needed to do since I couldn't see much of what the cards said because I had hit space a couple times. This made being able to see the cards a lot harder. Once I was clear on how to play, it just didn't push me to keep trying.

This looks very cleanly done even if neither the art nor the music were done from scratch, so this is great technically speaking in this regard.