Spirit Blast

You gain the ability to send bursts of energy through your enemies using your spirit.
When you hit a creature with a melee weapon Attack or unarmed strike, you can unleash a surge of spirit energy from your body to deal extra 2d8 force damage to the target, in addition to the attack's normal damage. You can only amplify an attack this way once per round during your turn. Once you use this ability a number of times equal to your proficiency bonus, you can't use it again until you finish a long rest.