The potency buffs are nice but that does nothing to address the fact that all fights require constant movement. Why not increase the timer on umbral stacks to 20s instead of 10s? My problem is that with movement and long cast times I lose my umbral stacks and have to start rotation over and over again. Don't see this is a great buff to BLM's at all. Nice if we could just stand in one spot and pew pew. But that never happens.