At first its a bit confusing but that just because I refused to read the wall of text xD Perhaps you can introduce the runes slowly through different levels? Idk just some suggestions. I like how you implement the element counter though, it adds some spice to the game. I also like the art of the game so overall well done!

This is a great game! Kind of reminds me of those mobile games where you have to merge things and deal damage, but only slightly. I think this is a very interesting take on the theme and I loved the art style. The music is also amazing, really good job with that.