Rage in Ecstatic Union with a God
Barbarians who walk the Path of the Zealot receive boons from a god or pantheon. These Barbarians experience their Rage as an ecstatic episode of divine union that infuses them with power. They are often allies to the priests and other followers of their god or pantheon.
Divine Fury
You can channel divine power into your strikes. On each of your turns while your Rage is active, the first creature you hit with a weapon or an Unarmed Strike takes extra damage equal to 1d6 plus half your Barbarian level (round down). The extra damage is Necrotic or Radiant; you choose the type each time you deal the damage.
Warrior of the Gods
A divine entity helps ensure you can continue the fight. You have a pool of four d12s that you can spend to heal yourself. As a Bonus Action, you can expend dice from the pool, roll them, and regain a number of Hit Points equal to the roll's total.
Your pool regains all expended dice when you finish a Long Rest.
The pool's maximum number of dice increases by one when you reach Barbarian levels 6 (5 dice), 12 (6 dice), and 17 (7 dice).