Etheral Punch

You create a medium spectral hand in a point within range (the shape and size of whih you choose). If the hand is within 5ft of a hostile creature you may make a ranged spell attack dealing 2d8 force damage on a hit. If the creature is huge or smaller it is pushed 5ft in a direction you choose. As a bonus action on your subsequent turns you may move the hand up to 20ft towards a hostile creature you may then use your action to repeat the attack. The attack has advantage if the creature has been pushed by the hand previously.