Triton

Traits
Ability Score Increase: +1 Str, +1 Con, & +1 Cha

Size: Medium / Speed: 30walking & 30swimming

Languages: Common & Primordial

Features
Amphibious: You can breath water

Control Air and Water: Gain fog cloud at 1st level, gust of wind at 3rd, and wall of water at 5th. They can only be cast 1/long rest (use Cha as their SpellMod)

Emissary of the Sea: You can convey simple ideas to aquatic Beasts

Guardians of the Depths: Resist cold damage & ignore the penalties of watery depths