This is an odd but good idea, something would have to be put into the cube with the rune to be downgraded or else someone could just continuously downgrade them and say they didnt mean to and try to get their rune back. We will have to see what alex says. I like it though.

/e someone could still do that with something else in the cube. but it makes it a little safer if lag or something were to happen. something simple like a tp book or a health pot. just for safety.