Black Fin Pirate

Brute. A melee weapon deals one extra die of its damage when the Black Fin pirate hits with it (included in the attack).

Pack Tactics. The Black Fin has advantage on an attack roll against a creature if at least one of the pirate's allies is within 5 feet of the creature and the ally isn't incapacitated.

Reckless Attack. At the start of its turn, the Black Fin 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.

Multiattack. The Black Fin makes two attacks with its Cutlass or Harpoon.

Cutlass. Melee Weapon Attack: +6 to hit, reach 5 ft., one target. Hit: 10 (1d8 + 6) slashing damage.

Harpoon. Melee or Ranged Weapon Attack: +6 to hit, reach 10 ft. or range 20/60 ft., one target. Hit: 11 (1d10 + 6) piercing damage.

Frenzy (Recharge 5–6). The Black Fin flies into a frenzied state, gaining an additional attack as a bonus action for the next 1 minute.

Parry. The Black Fin adds +2 to its AC against one melee attack that would hit it. To do so, the pirate must see the attacker and be wielding a melee weapon.