Hunter Shark Cutlass (Patreon)

Weapon (scimitar), very rare (requires attunement)

The blade of this sword is carved from the tooth of a giant shark. You gain a +2 bonus to attack and damage rolls made with this magic weapon. If the target is a creature that's missing any of its hit points, it takes an extra 1d6 slashing damage from the attack. You have advantage on any Wisdom (Survival) check made to track a creature you've hit with the sword within the last hour.

In addition, while the sword is on your person, you gain a swimming speed equal to your walking speed and can breathe underwater. Further, sharks are indifferent toward you and will not attack you unless you threaten or harm them.

Once the chum is in the water, there is no stopping the hunger. My teeth—my blades—are forever stained with red.