Merfolk are people with the upper bodies of humans and the tails of fish. Males are called mermen while females are mermaids. Along with fish-men, they are capable of living both on land and in the sea. While their land movement can be limited due to possessing tails instead of legs, they are the fastest swimmers of any aquatic race or species. They also have the ability to communicate with fish. While mermen keep their tails intact for their whole lives, mermaid's tails split into legs when they turn 30, giving them the ability to move around better on land. The top half of a mermaid tends looks completely human, while the upper half of a merman tends possess fish-like attributes.
Swift Swim : Merfolk are the fastest swimmers among all races.
Dual Breathing : Merfolk possess the ability to breath both on land and in water, however they have to switch between the use of their lungs and gills, this will take a bonus action to do.
Fishspeak : Merfolk have been shown to be able to communicate with the specific type of fish that they correspond to as well as just basic fish (ex. Camie calling on a school of fish).
Water Manipulation : Merfolk have the ability to manipulate water in the same way a human might clay, although to augment this they use Merman combat and not Fishman Karate
Ability Score Increase : +2 Strength, Constitution
Age : Same as Fishmen
Size : Medium to Gargantuan
Speed : 10 on Land, 120 in Water
Languages : Common Tongue