Your Dexterity score increases by 2, and one other Ability Score of your choice increases by 1.

You are immune to poison damage and the poisoned condition.

Any creature that grapples you or otherwise comes into direct contact with your skin must succeed on Constitution saving throw or become poisoned for 1 minute. The DC of this saving throw is 8 + your Constitution modifier + your proficiency bonus. A poisoned creature no longer in direct contact with you can repeat the saving throw at the end of each of its turns, ending the effect on itself on a success. 
You can also apply this poison to any piercing weapon as part of an attack with that weapon, though when you hit the poison reacts differently. The target must succeed on a Constitution saving throw or take 2d4 poison damage. The DC of this saving throw is 8 + your Constitution modifier + your proficiency bonus. This damage treats immunity to poison damage as resistance to poison damage. 

You have proficiency in Perception Checks

Water Dependency. If you fail to immerse yourself in water for at least 1 hour during a day, you suffer 1 level of exhaustion at the end of that day. You can recover from this exhaustion only through magic or by immersing yourself in water for at least 1 hour.