At 3rd level, until your rage ends, you gain a +2 bonus to AC.

Starting at 6th level, your rage can protect you. If you fail a saving throw while raging, you can reroll it, and you must use the new roll. You can use this ability only once per rage.

Starting at 10th level, your rage can keep you fighting despite grievous wounds. If you drop to 0 hit points while you're raging and don't die outright, you can make a DC 10 Constitution saving throw. If you succeed, you drop to 1 hit point instead.

Each time you use this feature after the first, the DC increases by 5. When you finish a short or long rest, the DC resets to 10.

Beginning at 14th level, the relentless power that fuels your rage allows you to shrug off fatal blows.

While you're 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, and you die then only if you still have 0 hit points.