So I got to lvl 60 yesterday and I got Carve and Spit for my DRK however I dont get how this skill is useful. 1 MIN cooldown and with potency of 100, you get back a little mp really bad and with dark arts increases only the potency but you dont get mana back. Of course I used it as much as I can but it seems like a pretty bad skill. Am I missing something or maybe I should use it on a different way?