Ability Score Increase. Increase one score by 2 and increase a different score by 1, or increase three different scores by 1.
Size. The average Sea Elf height is 6 feet tall. If you are under 4 feet tall, your size is Small size. If you are over 4 feet, you are Medium size.
Speed. Your walking speed is 30 feet, and a swimming speed equal to your walking speed.
Lifespan. On average, Sea Elf live to be around 750 years old.
Creature Type. You are a Humanoid.
Language. You can speak, read, and write Common and one other language that you and your DM agree is appropriate for your character.
Child of the Sea. You can breathe air and water, and you have a resistance to cold damage.
Darkvision. 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.
Fey Ancestry. You have Advantage on saving throws you make to avoid or end the Charmed Condition on yourself.
Friend of the Sea. Aquatic animals have an extraordinary affinity with your people. You can communicate simple ideas to any Beast that has a swimming speed. It can understand your words, though you have no special ability to understand it in return.
Keen Senses. You have proficiency in the Perception skill.
Trance. You don't need to sleep, and magic can't put you to sleep. You can finish a long rest in 4 hours if you spend those hours in a trance-like meditation, during which you retain consciousness.