Amphibious. The Triton Commoner can breathe air and water.   Emissary of the Sea. The Triton Commoner can communicate simple ideas with beasts that can breathe water.   Spike (Trident Ability). When you make a melee weapon attack on your turn with this weapon, you can attempt to drive your weapon deep into a creature, holding it close to you. If the attack hits, it deals piercing damage equal to 1d4 + your Strength modifier, and if the creature is large or smaller the creature is grappled. While grappling with your weapon in this way, you cannot attack with it. You can remove a weapon from a grappled creature as a bonus action, and removing it in this way deals piercing damage equal to 1d4 + your Strength modifier.