Haki Advancement, Uncommon

You gain the ability to coat your weapons and attacks with your spirit. The heavier the application, the darker the coating is.

As a bonus action, you channel haki into your body or a weapon of your choice. If you choose your body, you choose either your unarmed strikes or a natural weapon. For 1 minute, your attacks with the chosen weapon are considered magical with a +1 bonus to Attack rolls and Damage Rolls.

If the attack already has a bonus to its attack and damage rolls, this feature replaces the bonus unless it is greater, in which case it does not gain this feature’s benefit.

This effect ends early if you fall unconscious, use it again, end it as a bonus action, or start your turn not holding or touching the weapon you coated. 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.