Instead of it doing massive damage for crashing into crystals I think the best idea for Shatter Dive is to make it a slow stack ability. The higher you jump the more stacks of slow are given once you choose to activate it. It should still kill frozen targets, but it shouldn't inflict additional damage. This gives the it much more use and consistency out side of using it with a grenade and contributes to the overall kit of the revenant hunter's slow abilities.