Amplified Eclipse Tattoo - Blinding smite

Amplified Eclipse Tattoo - Blinding smite
Wondrous item (tattoo), rare (requires attunement)
Produced by a special needle, this magic tattoo appears on your body as whatever you desire.
Tattoo Attunement. During the creation of this tattoo, attunement takes place. When the attunement is complete, the needle dissapears into the ink of the tattoo. If your attunement to the tatto ends, the tattoo vanishes, and the needle reappears in your space.
Fluid Ink. As a bonus action, you can shape the tattoo into any color or pattern and move it to any area of your skin. Whatever form it takes, it is always obviously a tattoo. It can range in size from no smaller than a copper piece to an intricate work of art that covers all your skin.
Blinding smite. This tattoo grants the user one amplified use of the spell blinding smite at 3rd level per long rest. The spell’s damage is amplified by 1d8. The spell also becomes known to the user, which will end when attunement ends.