Some deities inspire their followers to pitch themselves into a ferocious battle fury. These barbarians are zealots—warriors who channel their rage into powerful displays of divine power.
A variety of gods across the worlds of D&D inspire their followers to embrace this path. Tempus from the Forgotten Realms and Hextor and Erythnul of Greyhawk are all prime examples. In general, the gods who inspire zealots are deities of combat, destruction, and violence. Not all are evil, but few are good.
Divine Fury
Starting when you choose this path at 3rd level, you can channel divine fury when you start to rage. If you do so, you become cloaked in an aura of divine power until the rage ends. At the end of each of your turns for that duration, each creature within 5 feet of you takes damage equal to 1d6 + half your barbarian level. The damage is necrotic or radiant; you choose the type of damage when you gain this feature.
Warrior of the Gods
At 3rd level, your soul is marked for endless battle. If a spell would have the sole effect of restoring you to life (but not undeath), the caster does not need material components to cast the spell on you.
Zealous Focus
At 6th level, the divine power that fuels your rage can shield you from harm. If you fail a saving throw while raging, you can instead succeed on that saving throw as a reaction. However, doing so immediately ends your rage, and you can’t rage again until you finish a short or long rest.
Zealous Presence
At 10th level, you learn to channel divine power to inspire zealotry in others. As an action, you howl in fury and unleash a battle cry infused with divine energy. Every ally within 60 feet of you gains advantage on attack rolls and saving throws until the start of your next turn.
Once you use this feature, you can’t use it again until you finish a long rest.
Rage Beyond Death
Beginning at 14th level, the divine power that fuels your rage allows you to shrug off fatal blows.
While raging, having 0 hit points doesn’t knock you unconscious. You still must make death saving throws, and you suffer the normal effects of taking damage while at 0 hit points. However, if you would die due to failing death saving throws, you don’t die until your rage ends.
Possible Alternative for Spirit Points: While raging, if you have 0 Spirit Points, you are immune to the Dispirited condition, have advantage on all attack rolls, and creatures rolling saving throws against your abilities have disadvantage.