Barbarian subclass

Berserker

Berserkers choose the most direct expression of Barbarian rage: more attacks, fewer restraints, and a willingness to exhaust the body for immediate force.

The subclass is simple, dangerous, and focused on staying frightening in melee even when enemies try to control or punish it.

Later features such as Mindless Rage, Intimidating Presence, Retaliation expand that identity at higher levels, so the subclass has a clearer role in combat, exploration, utility, or support.

Source

Player's Handbook

A Berserker Barbarian subclass fallback portrait. — A Barbarian channels primal force before entering the front line of battle.

Frenzy

When you rage, you can enter a frenzy and make a melee weapon attack A stylized crossed-weapon icon representing a melee weapon attack. D&D Portal - Melee Weapon Attack Combat rule Melee Weapon Attack is a combat rule used by attacks, damage, defenses, or turn order. Full link: https://dnd-portal.com/rules/combat/melee-weapon-attack/ as a Bonus Action A stylized combat action icon representing a bonus action. D&D Portal - Bonus Action Action rule Bonus Action is an action economy rule used to describe what a creature can do on its turn. Full link: https://dnd-portal.com/rules/actions/bonus-action/ on later turns during that rage.

When the frenzy ends, the strain gives you a level of Exhaustion A stylized condition icon representing exhaustion. D&D Portal - Exhaustion Condition Exhaustion is a game condition that can affect what a creature can perceive, do, or resist during play. Full link: https://dnd-portal.com/rules/conditions/exhaustion/.

Mindless Rage

While raging, you cannot be Charmed A stylized condition icon representing charmed. D&D Portal - Charmed Condition Charmed is a game condition that can affect what a creature can perceive, do, or resist during play. Full link: https://dnd-portal.com/rules/conditions/charmed/ or Frightened D&D Portal - Frightened Condition Frightened is a game condition that can affect what a creature can perceive, do, or resist during play. Full link: https://dnd-portal.com/rules/conditions/frightened/, and either effect is suspended if it was already affecting you.

Intimidating Presence

You can use your action to frighten a creature that can see or hear you. The save DC uses your Charisma A stylized handshake emblem representing confidence,
personal presence, communication, and influence. D&D Portal - Charisma Presence, confidence, and influence Charisma measures force of personality, confidence, eloquence, and the ability to influence others. Full link: https://dnd-portal.com/rules/ability-scores/charisma/ modifier.

Retaliation

When a creature within 5 feet damages you, you can use your Reaction A stylized reaction icon. 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 make a melee weapon attack A stylized crossed-weapon icon representing a melee weapon attack. D&D Portal - Melee Weapon Attack Combat rule Melee Weapon Attack is a combat rule used by attacks, damage, defenses, or turn order. Full link: https://dnd-portal.com/rules/combat/melee-weapon-attack/ against it.