How can anyone be mana starved at MP3 and below? Especially at 150k unbuffed DPS. In that sense, taking the mana regen passive with Sacrifice doesn't make much sense to me. Spirit Barrage + Well of Souls also does a truck load more single target DPS then Poison Darts do.
Also, when you have some LS as well as Life on Hit, Cloud of Bats works amazingly with Acid Cloud. You can one shot Acid Cloud basically all mobs you come across and face tank elites and champions to death in seconds with Cloud of Bats.
I've been playing around with using Acid Cloud with Spirit Barrage Manitou and Cloud of Bats. You basically have Manitou firing off at all times (150k crits, basically a pretty nice dot) spam Acid Cloud and Cloud of Bats on elites. The only down side is that you lose the movement speed from Horrify, but you could always use that instead of Manitou.
I think a lot of people are missing how awesome Cloud of Bats is because they use it and think the range is so poor. It's actually a pretty awesome ability.
Other then that, great guide, videos are great as well.
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