Good job ! I think this one of the better submissions which was similar in this style where you swap out different abilities when you die or force exit out of the body. However in yours you added some sort of requirement you have to do in order to proceed. I think turn that into a puzzle and you got yourself something good here.
I did encounter a bug where i could kill the mage at the start and nothing happened. Cause the mage was not hostile enough and i could perma stunlock it.