02 Dec 2009 at 18:56 - 61
MoP is an...Interesting skill. The more enemies you are facing, the more powerful it becomes.
I think I understand what the OP is saying, because if we were truly honest with ourselves, I think we could all admit that at the very least HB+Whirlwind Attack+MoP is overpowered, just like we could all admit that PvE skills are overpowered (despite the fact that some classes such as the Paragon require them in order to have a use in PvE).
Or is it?
Now, I personally don't have any experience with teams that employ this, so I'll have to fall back on math (which really, is more reliable for things like this anyway, since it eliminates the variables of randomness and player skill).
At 14 Curses, MoP does 38 shadow damage. A warrior with 14 swordsmanship will do (18.5*(1-.196) + 22*1.41*.196)= roughly 21 raw dmg per hit. Of course, actual damage is more complicated. But since I'm feeling lazy, I'll just take as a given that HM enemies take half damage and ignore the effects of strength. And then we throw in inscriptions and customization, and we get an effective damage of about 14.5.
Of course, the AoE from HB is 24 at 14 swordsmanship, which HM enemies will reduce to 12.
Let's assume that the warrior attacks once per second, and each second attack is Whirlwind Attack.
For the first attack, he will hit the AoE targets for 12+38= 50 damage. For the second attack, the damage goes like this:
AoE damage per target for all targets except the one with MoP= 14.5 + (12+38)*number of targets hit by whirlwind attack
For 2 enemies, that means the lone AoE target will take 114.5 damage. For 3 enemies, the 2 AoE targets will each take 164.5 damage. And each additional enemy beyond that is 50 more damage for each target that isn't hexed by MoP.
For the target that is hexed by MoP, however, the damage is simply:
14.5 + 12*number of targets hit by whirlwind attack
For 2 targets hit by whirlwind attack, that's 38.5 damage. For 3, it's 50.5. For 4, it's 62.5.
Now, let's compare that to MSDB. MSDB gets a little over 40 AoE dps. However, the primary target damage is much greater. In fact, it's far beyond what HB+WhirlwindAttack+MoP can do except under the most extreme of circumstances. The same is true of scythes.
MoP seems scary, but when you do the math and think of what is required for it to be used properly (not like you can depend on the monsters doing what you want, especially with the scatter), as well as it's low primary target damage, it's not nearly as bad.
Plus, let's not forget that MoP is a key part of the HB+WA build that is one of the key reasons to play as a warrior. I personally loathe the idea of a profession being redundant, and nerfing MoP would move the warrior one step closer to it.