Kinetic Tattoo

Alter: While this tattoo is applied on your skin, whenever you take bludgeoning damage, you gain a charge. All charges gained in this way vanish at the end of your next turn.
When you hit a creature with an unarmed strike, you can expend 1 or more charges to deal an extra 1d6 bludgeoning damage for each charge expended.

Attunement: no
Materials/cost: 10gp
Placement: Torso
Rarity: Common
Produced by a special needle, this magic tattoo symbolizes the branching paths in one’s life.

This tattoo grants its bearer the ability to absorb energy and actually retains that energy across its surface, building tension as it goes. If ever too much energy is allowed to build up within the tattoo, there is a danger that it might rebound on the bearer, often to catastrophic results. This warning is printed (in fine print) on the bottom of every parchment bearing the design.