Water Genasi
Add these onto the Parent Race
Ability Scores
Wis +1
Speed
30 ft. swim
Acid Resistance
You have resistance to acid damage.
Amphibious
You can breathe air and water.
Call to the Wave
You know the shape water cantrip, and you can have up to four of its non-instantaneous effects active instead of three.
When you reach 3rd level, you can cast the create or destroy water spell as a 2nd-level spell once with this trait, and you regain the ability to cast it this way when you finish a long rest.
Constitution is your spellcasting ability for these spells.