Alien Tendrils

Grasping Tendrils. Your hands now have a black pigmentation resembling black ink, as an action,  Inky tendrils extrude from your hands, which reach for a creature you can see within 15 feet of you. The creature must succeed on a DC 14 Strength saving throw or take 3d6 force damage and be grappled by you. As an action, the creature can escape the grapple by succeeding on a DC 14 Strength (Athletics) or Dexterity (Acrobatics) check. The grapple also ends if you halt it (no action required), if the creature is ever more than 15 feet away from you, or if you use this tattoo on a different creature.
Once this ability has been used you cannot use it again until after a long rest.