I like Vice of Thorns. It's one of the more fun counterattack-type mechanics for the user and, while it sucks you can get stunned for your teammate's actions, it's overall one of the healthier ones in the game. It's pretty distinct.

Prefulgence, tho? Brings no enrichment to the job. It feels so tacked on and uninteresting. Not a numbers thing. Just not fun to use. Doesn't have a sense of flow or satisfaction to it.