Because rage blocks any spell casting, including cocoon.
Yes, you can dismiss rage when you need cocoon, but you know barbs are lazy
So, they insisted they needed unblockable & in-battle healing from auto-attack. Blood Strength from Ravager.
Blood Strength: Each time you land a hit there is a 12% chance you heal positive damage equal to your Barbarian level. Each time you kill an opponent you are healed for 20 hit points. This healing scales with 100% Melee Power.
It's obviously over-powered enhancement.
I think they should need to get out of the combat to heal, DPS-loss when you heal like every other classes.
& it should be temp-hp, not real hp.
Current barbs doesn't need to get out of the combat to heal. DPS & Heal at the same time, that's the problem.