Denki Denki No Mi: Model Cerberus ("Mythical" beast beast fruit, model Cerberus)
Class: Zoan
Subclass: Mythical
Fruit's appearance: The fruit resembles a banana, although much larger and hot red in color. Like all Devil Fruit, it has the standard spiral-shaped pattern
Abilities granted upon consumption: The user of this fruit, like all zoan fruit users, can transform into his beast form. In this case, the user can transform into the legendary Cerberus, featuring 3 heads, a snake as a tail as well as a rock-hard hide. User gains superhuman strenght and well as increased speed when transformed, like most zoan users. Also, since this fruit is a "Mythical" beast, the user also gains additional effects, such as the ability to use some fire-based attacks, most notably fire breath, a very durable body and also the snake head on the tail contains powerful and corrosive poison. Also, if one of the 2 heads that sprout upon transformation get cut off, user can regenerate them (he cant regenerate his real head).
Weaknesses: The user's powers are greatly reduced when he is in daylight, making this fruit, despite its many powerful effects, very hard to get used to. (It sound be noted that this works in vice versa, making him stronger in dark environments). While powerful vs melee attacks, slice attacks can still hurt the user the same. Aside that, the user is also weak against the standard Devil Fruit weaknesses.