Originally Posted by Kass

As for COH, I'm a huge proponent of the spell. We typically run with at least one complete "melee" group that I can guarantee a 5 hit on for almost every encounter. COH is not mana friendly over the long haul if you chain spam, but as a priest no spell really is. Nevertheless, it can be a very useful spell and incredibly effective if used and paired correctly with another healing class. If you find yourself MT healing a lot, I wouldn't suggest getting it, but if you find yourself OT healing quite a bit, or raid healing in general, it can be really useful. Just to give you an idea of where I've found it useful (based on how my guild handles encounters) for the encounters you're about to experience.

Lurker - Not Useful