Your Constitution score increases by 2, and one other ability score of your choice increases by 1.

Your size is Medium.

Your base walking speed is 30 feet.

Aversion of Fire. If you take fire damage, you must make a Wisdom save, with a DC matching the amount of fire damage taken. On a failed saved, you have disadvantage on attack rolls and ability checks until the end of your next turn.

Immutable Form. You are immune to any spell or effect that would alter your form.

You are resistant to lightning damage. When you take lightning damage, you can use your reaction to take no damage, and instead spend and roll a hit dice, regaining HP equal to the roll plus your Constitution modifier.

You can speak, read, and write Common and one other language of your choice.