Use an action to attempt to frighten one creature within 30 feet. The target makes a DC 13 Wisdom saving throw.

As a bonus action, enter a rage, gaining resistance to bludgeoning, piercing, and slashing damage, advantage on Strength checks and Strength saving throws, and +3 damage on melee weapon attacks using Strength.

While raging, make one melee weapon attack as a bonus action on each turn after entering a frenzy. When the rage ends, gain one level of exhaustion.

When raging, Garnthu can enter a frenzy as a bonus action. For the duration of that rage, he can make a single melee weapon attack as a bonus action on each of his turns after this one. When the rage ends, he suffers one level of exhaustion.

When a creature within 5 feet damages Garnthu, make one melee weapon attack against it as a reaction.

After taking the Attack action, make two weapon attacks instead of one.

If Garnthu drops to 0 hit points while raging, make a Constitution saving throw to drop to 1 hit point instead. The first save is DC 10, increasing by 5 for each later use before a rest.

While not wearing heavy armor, Garnthu adds his Constitution modifier to his Armor Class. His unarmored AC is 13.

Garnthu has advantage on Strength (Athletics) checks.

Garnthu has advantage on Dexterity saving throws against effects he can see, such as traps and spells. He does not gain this benefit while blinded, deafened, or incapacitated.

Garnthu follows the Path of the Berserker, gaining the Frenzy, Mindless Rage, Intimidating Presence, and Retaliation features.

Garnthu's speed increases by 10 feet while he is not wearing heavy armor.

Garnthu has advantage on initiative rolls.

If Garnthu is surprised at the start of combat and is not incapacitated, he can act normally on his first turn if he enters a rage before doing anything else.

Once per turn when he scores a critical hit with a melee weapon attack, Garnthu rolls two additional weapon damage dice when determining the extra damage from the critical hit.

Garnthu is immune to being charmed or frightened while raging. If he is charmed or frightened when he enters his rage, the effect is suspended for the duration.

Garnthu has advantage on saving throws against being frightened while raging and is immune to being frightened while raging through Mindless Rage. He can remain raging regardless of whether he attacks or takes damage, and his rage ends only if he chooses to end it or falls unconscious.

Garnthu can add his Strength modifier to any Strength check he makes. If his total for a Strength check is less than his Strength score, he can use that score in place of the total.

Garnthu can improve three ability scores at levels 4, 8, and 12. No specific improvements were assigned because the requested ability scores were supplied as final character values.

Garnthu can recognize the military rank and insignia of soldiers and knows the basic customs of military organizations. He can find shelter and aid among soldiers, former soldiers, and sympathetic civilians, though such help may come with expectations.