Knuckle Spikes

You had adamantine spikes drilled into your knuckle joints. Once the pain has subsided, you are no longer without a weapon.

You unarmed strikes now deal 1d4+Str modifier in piercing damage. These attacks are considered adamantine for the purposes of overcoming damage resistance and for damage against structures. When you take the Attack action you can make an attack with your knuckle spikes as a bonus action.