The bones in your hands and feet harden. You gain a +1 to bonus to arrack and damage rolls with unarmed strike

Eldrich Maul: as a bonus action, you can empower yourself for 1 minute. For the duration, each of your melee attacks with a weapon or an unamed strike can reach a target up to 15 feet away from you, as inky tendrils launch towards the target. In addition, your melee attacks deal an extra 1d6 force damage on a bit. Once used, this bonus action can't be used again until the next dawn.