Yep any class that does damage over time would love somthing like this as of now i am a Druid and Dots are what i am living by killing Elysians Snare Root Epic, Es vamb, Small dot, Med Dot, Large Dot, Doing aprox 410 damage pr tick. It takes nearly all my mana and a Kei to do it. Mana saveing would help ton. And in combat Grp wise I Pop mobs last long enough to cast a full set of those dots and have them all but Epic complete befor combat does so I feel i am at least helping some more than just DS, regen and Succor..
My 2cp