Dark Dark Fruit

The Dark Dark Fruit  is a Logia-type Devil Fruit that allows the user to create and control darkness at will, making the user a  Darkness Human  (闇人間  Yami Ningen ). "Yami" (闇) is the Japanese word for "darkness".

This fruit is considered "unique" even for a Logia type,   and the ability it grants is said to be the "most evil".

Strengths and Weaknesses
The main strength of this Devil Fruit is it's power of control over the darkness and it's property of gravity, the darkness is visually demonstrated by a black smoke-like substance spreading out from the user's body, the user can drain in players to prevent them from running away, when hit by his Kurouzu, tools, even devil fruit defenses and powers are taken away for a few seconds, taking away Logia Defenses as easily, with the control of gravity which is a major strength of this fruit, the user can charge up a massive black hole, absorbing nearby objects and liberating them at enemies, effectively doing damage.

The major strength of this fruit's ability, controlling gravity is also it's greatest weakness, the Fruit absorbs gravity even without the user's control, meaning the user doesn't have Logia Defenses like other Logia users, and due to absorbing everything, even attacks the Yami user takes more damage then the average person, the only way the Yami user can take away your tools or DF powers temporarily is through physical contact, stay away if you can.

Abilities
Black Hole: The user starts to charge up sphere of darkness, expanding to a great size that could possibly absorb the objects of an entire island.

Liberation: After absorbing objects in the users personal "Space" he can let them out at will, doing considerable damage to anyone who gets in the way.

Kurouzu: The user brings out an orb of dark energy with intense gravity, pulling in anyone in close range and upon touch, disables their ability to bring out a tool or their DF defenses for a few seconds.