As an action you create a giant fist made out of scales that lasts for 1 minute which surrounds your hand.

In the same action you can make melee attack against a creature within 5ft of you. On a hit you deal 2d8 bludgeoning damage.

On subsequent turns you can spend your action to make melee attack against a creature within 5ft of you. On a hit you deal 2d8 bludgeoning damage.

You can cast this spell at higher levels to increase the damage by 1d10 for each spell slot above 1st to a maximum of 4d8.