Your training allows you to move your tail with incredible speed to attack or to propel you. You gain the following benefits:

• Your base speed increases by 5 feet.

• You can use a portion of your tail to make an unusually effective unarmed strike. Your unarmed strike with your tail deals 1d6 bludgeoning damage and has the finesse and light properties.

• When you hit a creature with an unarmed strike using your tail, you can use a bonus action to attempt to shove the target.

Sandy Petersen’s Cthulhu Mythos