Your Constitution increases by +2 and Dexterity increases by +1

You can speak, write and read Common, Primordial, Aquan and one language of your choice.

You have an Immunity to poison due to how deep in the ocean you lived and what kinds of fish you ate. 

You have resistance to fire, cold, and acid. You have resistance to fire and cold due to the fact of how deep in the ocean you lived, and often times water trumps most fires. You have a resistance to acid due to living in the deep where several other creatures like yourself in the deep sea either spewed acid at one point or could summon and control acid before they went extinct.

You can see in the dark up to 120ft. You can see in dim light within the radius 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.

You are vulnerable to the sunlight and after spending three hours straight in the sunlight without any shade between it you start to take 1d4 damage every two hours you spend in the sun after. You will have a strong headache that grows and causes your mood to sour greatly while causing you to snap at those you call your own, the more time you spend in direct sunlight with no breaks of shade. However in damp climates while in sunlight ei: You stay in sunlight but its a cloudy or very foggy day, maybe you're exploring in a thick forest with lots of shade? You will gain 1d4 HP every two hours while in a damp climate. 

You know the shape water cantrip. When you reach 3rd level, you can cast the create or destroy water spell as a 2nd-level spell once with this trait. Constitution is your spellcasting ability for these spells.

You have Expertise in Survival due to living deep in the ocean with all sorts of dangers. You also have Half Proficiency with Stealth and Medicine.

Due to the Deep Sea Genasi living in water for so long, especially in the deep dark remote parts of the oceans, they have gained a resistance to water attacks, and water-based attacks. They also have a natural resistance to ascending and descending to and from the depths of the ocean suddenly due to how they dwell deep within the ocean.

You gain sharpened fangs to attack, or defend yourself with a bite

Your wings have grown out and therefore they give you a pretty huge advantage, and a couple disadvantages as well honestly. 

Flight- You are able to fly 20ft in the air for five minutes in game.

Underwater Advantage- When you use your wings underwater it gives you a +15ft range added to your normal 60ft swimming speed. 

Protective Wings-  When you curl your wings protectively around others and yourself within your wingspans reach(15ft) you give yourself a +6 Armor bonus with a limited movement speed-and everyone inside your wings takes no damage-until you unfurl your wings. You cannot move from your spot once you do this until you unfurl your wings from around everyone and yourself. This can only be used three times a day, after using it three times and you will not be able to use it unless the next Dawn has happened. Please note that if the enemy strikes higher than your armor score with the bonus then you get the damage of all attacks meant for your allies as long they remain within your wings. 

You can breathe air and water. You also can swim up to 60ft.