One ability score of your choice increases by 2, and a different ability score increases by 1.

Your size is Medium.

Your base walking speed is 30 feet.
Your base swimming speed is 30 feet.

You can breathe air and water.

Due to your shell and the shape of your body, you are ill-suited to wearing armor. Your shell provides ample protection, however; it gives you a base AC of 17 (your Dexterity modifier doesn’t affect this number). You gain no benefit from wearing armor, but if you are using a shield, you can apply the shield’s bonus as normal.

You have resistance to fire damage.

You can use your action to exhale a 15ft cone of damaging steam. When you use your steam breath each creature in the area of the exhalation must make a Dexterity saving throw. The DC for this saving throw equals 8 + your Constitution modifier + your proficiency bonus. A creature takes 2d6 fire damage on a failed save, and half as much damage on a successful one (Being underwater doesn’t grant resistance against this damage). The damage increases to 3d6 at 6th level, 4d6 at 11th level, and 5d6 at 16th level. After you use your steam breath, you can’t use it again until you complete a short or long rest.

You can speak Common, Draconic, and Aquan