Dero Dero no Mi

The Dero Dero no Mi is a Paramecia-type Devil Fruit that allows the user to dissolve themselves into liquid. It was eaten by Artur Bacca.

Etymology

 * "Derodero" (デロデロ) is a "coined" mimetic for the state where one is hardly conscious and have big trouble keeping on one's feet.

Strengths and Weaknesses
By shooting beams out of their eyes, the user can dissolve people's hearts, placing them under the users' control. The victims will die after 24 hours unless the user is knocked out beforehand.

The user is also able to access abilities similar to a Logia by being able to dissolve themselves into liquid. No weaknesses are currently known aside from the standard Devil Fruit weaknesses.

Usage
Bacca uses this fruit in combat to bring enemies under his control.