Barbarian subclass
Ancestral Guardian
Ancestral Guardians turn rage into a bond with the warriors, guides, or guardian spirits of their people.
Their features mark enemies, reduce incoming harm, and eventually let the spirits retaliate when they protect someone.
Later features such as Spirit Shield, Consult the Spirits, Vengeful Ancestors expand that identity at higher levels, so the subclass has a clearer role in combat, exploration, utility, or support.
Source
Xanathar's Guide to Everything
Ancestral Protectors
While you are raging, the first creature you hit with an attack rolls D&D Portal - Attack Roll Combat rule Attack Roll is a combat rule used by attacks,
damage, defenses, or turn order. Full link: https://dnd-portal.com/rules/combat/attack-roll/ on your turn becomes the focus of your ancestral spirits until the start of your next turn.
That creature has a harder time harming anyone except you, and your allies are protected against the damage it deals.
Spirit Shield
While raging, you can use your Reaction D&D Portal - Reaction Action rule Reaction is an action economy rule used to
describe what a creature can do on its turn. Full link: https://dnd-portal.com/rules/actions/reaction/ to reduce damage taken by a creature you can see within 30 feet.
The spirit shield becomes stronger as you gain Barbarian levels.
Consult the Spirits
You can call on ancestral spirits to cast divination magic without using a spell slot or material components.
Your Wisdom D&D Portal - Wisdom Awareness, intuition, and insight Wisdom measures awareness, intuition,
perception, and the ability to understand people and surroundings. Full link: https://dnd-portal.com/rules/ability-scores/wisdom/ is the spellcasting ability for this feature, and the use refreshes after a short rest
D&D Portal - Short Rest Rest rule Short Rest is a rest rule used to recover
resources, hit points, and class features. Full link: https://dnd-portal.com/rules/rests/short-rest/ or long rest
D&D Portal - Long Rest Rest rule Long Rest is a rest rule used to recover
resources, hit points, and class features. Full link: https://dnd-portal.com/rules/rests/long-rest/.
Vengeful Ancestors
When Spirit Shield prevents damage, your ancestral spirits also strike back with Force D&D Portal - Force Damage type Force is a damage type used by attacks,
spells, class features, resistance, immunity, and vulnerability. Full link: https://dnd-portal.com/rules/damage-types/force/ damage equal to the amount prevented.