That was a lot of fun, I ended with a score of 53! (no idea if that's good or not though).
At first, I had a lot of trouble understanding the mechanics, and in fact I thought I was soft locked, but after restarting and figuring out how things work, like the weaknesses monsters have and that fire breaks doors and stuff, I really, really liked it! =D
I wish the rune of destruction was a litttle more difficult to make tho xD