Originally Posted by nVJoe
Huh? So if it procs and gives me mana bonus, I am supposed to be impressed?
Holy crap. It is as if I am talking in /1 general chat.
Actually it works a lot like rogue Remorseless Attacks, the biggest downside is that you have to get the KB. However it does work in PvP as well, as ninjaman said (could've said it nicer btw). It will proc on mobs/chars as long as they are green giving you some nice mana regen for the time that it is up. For leveling it is very handy as I can continue grinding mobs 1-2 levels below me without stopping to drink every 7-8 mobs.
I started 2 weeks ago and am level 40, that's with 3 days 13 hours played, so I think I'm probably doing alright. Once I get into raiding I can spec out of Spirit Tap since I will most likely not be getting KB 90% of the time, that's if my guild can handle a shadow priest (though we already have 2 healadin's leveling up, and a holy priest, hehe).