Eight Fixes to Make These Changes Good.

[Jinko]

Speed surge heals rough 10-15 hp a hit. It would in no way mitigate a significant impact on health from a buff. If the impact of the health cost is not going to be significant then there is no reason to put it in the game.

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.