Had a thought today about Fracture and its infrequent use (it being a dps loss in nearly all scenarios).

What if instead of a stand-alone ability, it were a 3rd stage combo finisher following after skull sunder? It would be similar to PLDs goring blade, I suppose, but would be nice to actually have a DoT to keep up- in addition to either SE or SP- with BBs in between.

Then you just balance the potency and duration, and voila! You have a useful skill.