Naga

Naga resemble enormous snakes with shoulders, arms, and a torso that resembles a humanoid form. They typically hold their heads and torsos off the ground while moving, but they can increase their speed by lowering their bodies and using their hands for extra propulsion. They adorn their torsos with armor, jewelry, and a vague nod toward the clothing worn by other races. Male naga have broad hoods, wider than their shoulders, while females have narrower hoods and longer faces.

Naga believe in a principle called the Sweetest Harmony, which describes a perfect balance between the body and the mind. Finding that balance, as they understand it, is a sure path to glory in the trials, since a combination of physical and mental preparation will ensure success in every trial. For an example of this Sweetest Harmony, they point to the Luxa river and the land it nourishes, which exist in a delicate and life-giving balance. Either one without the other would be diminished and useless. Just so, mental strength supports physical capabilities, and physical fortitude feeds mental tenacity, so neither mind nor body can exist in isolation.

In the same way, the naga believe that Kefnet and Rhonas exist in interdependence, and that their trials are best conceived as two halves of a whole. But in practice, as much as they strive for balance and harmony, most naga identify more strongly with one god than the other.

Naga Traits:

All Naga share the following traits.
Ability Score Increase. Your Constitution score increases by 2, and your Intelligence score increases by 1.
Age. Like humans, naga reach adulthood in their late teens. They show no signs of aging beyond that point except for growing larger, so in theory, a naga could live well over a century.
Size. Naga stand about 5 feet tall when upright, but the total length of their bodies, head to tail, ranges from 10 to as much as 20 feet. Your size is Medium.
Speed. Your base walking speed is 30 feet.
Speed Burst. By lowering your body to the ground and propelling yourself with your arms, you can move more quickly for a time. As a bonus action on your turn, if you have both hands free, you can increase your walking speed by 5 feet until the end of your turn.
Natural Weapons. Your fanged maw and constricting serpentine body are natural weapons, which you can use to make unarmed strikes. If you hit with your bite, you deal piercing damage equal to 1d4 + your Strength modifier, and your target must make a Constitution saving throw (DC 8 + your proficiency bonus + your Constitution modifier). On a failed save, the target takes 1d4 poison damage.
If you hit with your constrict attack, you deal bludgeoning damage equal to 1d6 + your Strength modifier, and the target is grappled (escape DC 8 + your proficiency bonus + your Strength modifier). Until this grapple ends, the target is restrained, and you can’t constrict another target.
Poison Immunity. You are immune to poison damage and can’t be poisoned.
Poison Affinity. You gain proficiency with the poisoner’s kit.
Languages. You can speak, read, and write Common and Naga.

[credit mtg/dnd Amonkhet source]