Iron Maw Barbarian

The barbarian has advantage on any Charisma (Intimidation) or Charisma (Persuasion) check it makes when interacting with fiends.

As a bonus action, the barbarian can enter a rage that lasts for 1 minute. The rage ends early if the barbarian is knocked unconscious or if its turn ends it hasn't attacked a hostile creature or taken damage since its last turn. While raging, the barbarian gains the following benefits:

• It has advantage on Strength checks and Strength saving throws.

• It gains a +2 to bonus to the damage roll of any melee weapon attacks it makes (included in the attack).

• It has resistance to bludgeoning, piercing, and slashing damage.

3/DAY

At the start of its turn, the barbarian can gain advantage on all melee weapon attack rolls during that turn, but attack rolls against it have advantage until the start of its next turn.

While the barbarian isn't wearing any armor, its AC includes its Constitution modifier. It can use a shield and still gain this benefit.

While the barbarian is raging, it makes two melee attacks, one of which must be with its claw.

Melee weapon attack: +5 to hit, reach 5 ft., one target. Hit: 10 (2d6+3) slashing damage, or 12 (2d6+5) slashing damage while raging.

Melee Weapon Attack: +5 to hit, reach 5 ft., one target. Hit: 3 bludgeoning or slashing damage (barbarian's choice) plus 3 (1d6) fire damage.