Quote Originally Posted by Jinko View Post
Yes one is a buff for yourself and the other is a buff for the party.
I think the whole point is the buff mitigates the loss in HP, plus acts as a party buff to give HP back to the whole party everytime they land a hit.

Edit:- You are assuming that the new abilites will drain a great deal of HP from your character, which may not be the case, it could be no more or less than Ferocity and Invigorate currently use.
It doesn't really matter I just double checked and neither of those two abilities consume health. That effect is only added after this patch.