Your ancestors inhabited the murky depths of the ocean. You can see in dim light within 60 feet of you as if it were bright light, and in darkness as if it were dim light. You can't discern color in darkness, only shades of gray.

Your Dexterity score increases by 2, and two other ability scores of your choice increase by 1.

Half-Merfolk tend towards the chaotic alignments of their human sailor ancestors.

Half-Merfolk tend to live around three centuries, taking after their Merfolk ancestors. They reach adulthood in their late teens, early twenties.

Half-Merfolk will typically be around 6-7 feet tall. When they display their tails as opposed to legs, they can gain up to a foot to their height.

You can speak, read, and right in Common, Aquan, and one other language of your choosing.

You can spend a bonus action to change from legs to tail or vice versa. While your tail is out, your walking speed becomes 10 ft and swim speed becomes 40 ft. Younger Half-Merfolk often have trouble controlling their Tail Shift, and sometimes shift unwillingly when half-submerged in water.

You have advantage on any Acrobatics checks and Dexterity saving throws while fully submerged in water and Nature checks that involve water, regardless of whether its fresh or seawater. You have disadvantage to Constitution saving throws and Perception checks when in an arid environment.

You can breath both air and water.