Your Strength score increases by 2, your Charisma or Wisdom score increases by 1

Kappa become adults around the age of 25 and live to be nearly 200 years old. 

The majority of Kappas are usually of some form of chaotic or evil alignment as the stories of evil Kappas are more common. However, there are good aligned Kappa who form relationships with other river-side villages.

You are a small creature.

 You have a base walking speed of 30ft and a swim speed of 30ft. 

Kappas can breathe air and water.

You have a bowl in your head that contains life giving water. As an action, you can pour water onto a creature, healing the creature for 1d8 hit points. The water loses its healing properties mere seconds after spilling from your head, so a creature cannot bottle your water for later use.

You may do this a number of times equal to your proficiency bonus per long Rest

When making grapple checks, shove checks, or determining your carry weight, you are considered a Medium creature. 

You can speak Common and Aquan