You have proficiency in acrobatics and can use acrobatics or athletics for climbing based skill checks that are less than 20 feet high

You have advantage on grapple attacks (you still need to use your hands to grapple you tail is simply an aid to the grapple) If you chose not to use your tail then you no longer have advantage on the attack

You gain darkvision for 30ft

Your Dexterity score increases by 2, and your Wisdom score increases by 1.

Your base walking speed is 30 feet.

You can speak, read, and write Common, and Demi Human