- Description: A Black Stone containing the power of the tides discovered by a mysterious merchant guild on the Misty Island in the distant sea.
- Used to perform guaranteed enhancement on Tuvala Gear to PEN (V). Stones required for TET (IV) to PEN (V) gear: 1
- Able to Enhance: Tuvala Main Weapon, Sub-weapon, Awakening Weapon, Helmet, Armor, Gloves, Shoes
- Press {KeyBind:Attack2} to start enhancement- Enhancing with the above item does not consume durability.