This had a really solid Engine. Aside from having trouble avoiding enemy attacks because I couldn't quite time the animations this was pretty smooth.
I'd say if you polish this up and add some RPG elements you could turn this into a really compelling Dungeon Crawler or Action Hack n Slash game. Especially since you've already got a really nice graphics aesthetic which is easy on the eyes, some nice magic particle effects, etc. All you really need is some polish, a story, and some extra abilities to unlock and you're golden.
Otherwise nice work. I featured Dadoor in my first LD39 Showcase video.