Oni Oni no Mi, Model: Totoro

The Oni Oni no Mi, Model: Totoro (Demon Demon Fruit, Model: Troll) is a Mythical Zoan type Devil Fruit that allows the user to transform into a full troll and a human-troll hybrid. It was eaten by Matthew E. Rowe's coat.

Appearance
Imagine a green pineapple with dark red swirls.

Strengths and Weaknesses
The main strength of the fruit is that it gives the user the trolls extraordinary ability of high-speed regeneration and boosting the users strength, durability, endurance and also reflexes and speed to a limited extent.

Because it was eaten by a coat and not a human, it made the coat semi-sentient. Capable of limited thought and reasoning abilities. Also the abilities work differently, as the coat isn't able to fight by it self. Instead the coat bonds with a human and lends him the powers, living as in a symbiotic relationship capable of telepathically communicating with the wearer.

Once bonded the wearer has limited access to the coats high-speed regeneration. Allowing the wearer to meld minor cuts and punctures within minutes.

Once commanded to release the Hybrid form, the coat becomes more grafted to the wearer and the wearer himself gains scalish skin near the connencted areas and his eyes turn black with yellow irises. In this phase the wearer gains access to a huge boost to durability, endurance and the healing abilities.

In the Full-troll form the coat completely envelopes the wearer and then transformes itself into a troll. In this form the user doesn't change, the coat insteads works as an outer shell of sorts. The coat expands in both size and mass (muscle mass). The outer shell is hard to damage thanks to its hard scales and dense muscles. The ability to heal is now fully unlocked, but because of its increased size the ability isn't enough to sustain the whole body, the ability focuses itself on internal injuries more and instead of healing the outside, it instead starts sucking in nearby anorganic matter just as a real troll would. For example, say the shell has a large portion of their arm burned, instead of slowly healing it, it would suck in nearby rocks and in extreme cases a whole tree can be integrated into the body.

The coat is still weak to the standard devil fruit weakness (but the user is still able to swim, as it becomes a piece of clothing again). And even though the regeneration abilty is impressive, there is a limit to it. If the coat happened to be set on fire, it would lose its ability to heal until extiguished. Same goes with acid, albeit being much harder to get rid of. The wearer on the other hand can still be decapitated, as any sure-kill blows to the user will render the coat useless on its own. Also if the wearer somehow loses the coat mid-fight he is on his own.

Attacks
Maily the wearers techniques enhanced by the coats strength.