Your Wisdom score increases by 2, and you can choose either your Constitution or Dexterity score to increases by 1.

Axotl mature at a similar rate to humans, but their lifespan varies on their climate. In warm and wet climates they can live for a little over 100 years, whereas cold and dry climates cut their lifespan down to around 60.

You are a Humanoid.

Axotl are naturally peaceful creatures that like to help others when their shy nature lets them. They tend toward good alignment. 

Axotl sizes vary on when they are introduced to land. Axotl that grew up in the sea will often reach similar heights to humans; however, those that left the waters early or were born on land will tend to only reach a height between 4 and 5 feet. Your size is Medium.

Your walking speed is 30 feet, and you have a swimming speed equal to your walking speed.

You can breathe air and water, but need to be submerged at least once every 24 hours. You suffer 1 point of exhaustion each day you do not submerge. This exhaustion can only be healed from submerging in water, in which you heal 1 point of exhaustion for every 10 minutes spent submerged. Exhaustion points suffered from any other means cannot be healed using this trait.

Axotl are natural healers given their regenerative traits. When you reach 3rd level, you can cast the Cure Wounds spell with this trait, and Wisdom is your spellcasting ability for it. Once you cast the spell with this trait, you can’t cast that spell with it again until you finish a long rest. You can also cast the spell using any spell slots you have of the appropriate level.

When you apply healing to a creature other than you, you can heal half the total hitpoints recovered up to a total of your character level + your proficiency bonus (minimum of 1). You may use this trait a number of times until this cap is reached, in which it cannot be used again until you finish a long rest.

Axotl are regenerative creatures, but they have not yet adapted this ability to the world outside of the sea. While submerged in water, you gain access the following abilities with this trait:

• As a bonus action, you may spend a hit die to regain hitpoints equal to the roll plus your constitution modifier.
• When healing a creature, you may add hitpoints equal to your proficiency bonus on top of any healing applied to a creature that is submerged in water.

You have 3 uses of this trait, which you regain after finishing a long rest. You may also regain a use after spending 1 hour submerged in water.

Note: for the purposes of this trait, "submerged" is being in any water source that can at least fill a 5ft cube of space. However, the DM can overrule this and decide on what counts as submerged.