I took it to experiment with it in an AoE tanking situation. The theory was that, with enough mobs, the RP per cast would be a greater overall DpS gain than DC.
The problem was that, realistically, by the time something died and I could use it, the rest were very soon to go as well. And I NEVER had threat problems (AoE or ST) as Unholy, so it didn't really make much difference. I'd go UB or something else, just for the added benefit on bosses (UB isn't great for me as a tank, because my AP is so low).
If you have a Rogue in your group, along with a Mage, it could be useful though. The Rogue requires you to focus on a single target, the Mage on multiple. It could make the difference between a dead DpS. But, again, this is only if the Rogue's DpS is sufficiently high to kill that single mob fast. Because Mages tend to pull early, not late. And Rogues the opposite, in my experience (I figure their first Envenom is what launches them over the AoE threshold, on those situations where my AoE threat isn't enough, which is rare because I can put out 3K+ TpS to an AoE target).
[EDIT]
Additional problem with CE, that I forgot to include, if we specifically compare it with (say) UB.
UB will add 10% to every DC that you cast unless a target dies during its tics. Since CE cannot be used until something dies, you will probably end up with 2 or 3 DCs at least on some of the tougher trash packs, like in the Frozen Halls instances, before you can use CE. That means the DpS is a comparison between CE x #of targets to DC + .1DC x # of uses before something dies.
So, even if CE is a minor buff to DpS/TpS over a single DC, it becomes less and less so as the battle goes on. And on some trash fights, UB would have been stronger in the end anyway. If you could re-use corpses, maybe not. But it's a one time thing as it stands now (if I recall properly. As my armory shows, it's been a while since I've touched my DK).
Edited, Feb 21st 2010 10:31pm by idiggory
____________________________
IDrownFish wrote:
Anyways, you all are horrible, @#%^ed up people
lolgaxe wrote:
Never underestimate the healing power of a massive dong.