Personal Reaper Build
If you are going with Bitter Chill, isn’t chilling nova a more logical choice for your AoE build. Alternatively Augury of Death synchronizes better with your shouts/syphon build.
I’ve been at a constant struggle between chilling nova and Relentless pursuit. In many different circumstances I’ve seen both as a great use. Generally I swap out for Chilling nova inside of fractal use where as in the world I normally use Relentless to rid the annoyance of being slowed trying to run to a world boss or other poi’s. I’ve also found myself swapping chill of death for Rending shout for most occasions. But either work very well for the overall goal. I do have to say with this set up the amount of healing done inside of shroud gets insane. keep running into champ fight getting knocked to around 20-30% health popping shroud and my health goes almost immediately to full when using deaths charge or soul spiral.