Spellshield Tattoo

Alter: As a reaction when you are the target of a spell that targets only you (not in an area of effect) that either misses you or against which you succeed on the saving throw, you can reflect that same spell back at the creature that cast it, using the slot level, spell save DC, attack bonus, and spellcasting ability of the original caster.
If you reflect a spell requiring concentration, you must maintain concentration on the spell. Once used, you can’t use this tattoo again until 10 minutes have passed.

Attunement: Yes
Materials/cost: ???
Placement: Torso
Rarity: Legendary
Produced by a special needle, this magic tattoo represents an age-old shield known to have deflected even the most deadly of magics.

The original design of this tattoo was created by a historian and part-time tattooist with a great appreciation for ancient armors and shields. Once she discovered that many old shields harbored powerful enchantments anchored by markings and scripture, she immediately began to work on ways to incorporate them into tattoo designs. Her greatest work was replicating the magical enchantments imbued into a legendary shield passed down from hero to hero, known for protecting them against the most malevolent spellcasters in history.