I made a mod where ice shards (QR) causes knockdown effect in addition to its normal (i.e. pathetic) damage. It makes it more useful and gives it a niche effect that is useful without being just another damage dealing effect.
http://www.youtube.com/watch?v=FvK9MYjn9Mk
http://www.youtube.com/watch?v=FvK9MYjn9Mk