Hito Hito no Mi, Model: Daibutsu

The Hito Hito no Mi, Model: Buddha is a Mythical Zoan-class Devil Fruit that allows the user to transform into a giant Buddha. It was eaten by Sengoku, former Fleet Admiral of the Marines. The fruit's name was revealed in SBS Volume 60.

Strengths and Weaknesses
The main strength of this fruit is that it allows the user to transform into a giant Buddha-like entity, in which his body proportions are different, his torso and arms are much larger compared to the rest of his body, and his entire body seems to darken in color. Being one of the extremely rare Mythical Zoan-class, this fruit grants the user special abilities that are comparable to Paramecia and Logia classes, in addition to full and hybrid transformations that all Zoan possesses. With that, it gives them an extreme strength boost, as well as the ability to launch violent explosive shock waves from their palm.

This fruit has no apparent weaknesses, aside from the standard Devil Fruit weaknesses.

Usage
Sengoku uses this fruit primarily for combat purposes, enhancing his punching power with his increased size, to the point of injuring the rubber-bodied Monkey D. Luffy and destroying the scaffold they were on, even when it was blocked by Mr. 3's harder-than-steel "Candle Wall". Sengoku can launch shock waves to cause heavy and widespread damage to a group of enemies, and was strong enough to injure even the Blackbeard Pirates.

When Sengoku first used his fruit's powers to battle against Luffy, nearby Marines noted that they never seen him use it before, suggesting that he rarely transforms.

Trivia

 * This fruit's power is the main reason for Sengoku's moniker: "The Buddha".
 * When Sengoku transformed, his hat and Marine uniform seemingly disappears, leaving him only his glasses, pants and Marine overcoat, all of which increase in size with him.