The Kumo Kumo no Mi is a Logia-type Devil Fruit that allows the user to create, control, and transform into clouds at will, making the user a Cloud Human (雲間 Kumo Ningen?). It was eaten by Donk E. Kong.
Strength and Weaknesses
The fruit's major strength, as with all Logia fruits, is that it allows the user to control, create, and transform into the element in which they control. As the Kumo Kumo no Mi's element is clouds, Kong is able to control, create, and transform into clouds. This fruit is quite powerful, even among Logia, as it allows for a great variety of abilities, rather than just normal elemental control.
This fruit's true power comes from its versatility. Similar to the Gasu Gasu no Mi, this fruits allows its users to produce an array of different clouds which can be used for numerous reasons. Even before training, Wukong could create clouds of varying density to produce weapons and projectiles, suffocate opponents in a fog of white, or makeshift cloud barriers for defense. But as the Wukong Pirates crew traveled through White Sea, Kong discovered his fruit grants the ability to produce different types of weather clouds; hence granting him a form of weather manipulation.
Sakura's ability to manipulate the weather has allowed him to become the most feared creature on the planet. Through his thunderclouds, he can harness the power of lightning; through his frost clouds, he can produce snow, hail and even frozen crystals, and by rotating these into a fierce spiral, he can conjure tornadoes. With his power to limitlessly produce clouds, he can change an entire country's weather in minutes. Similar to the Goro Goro no Mi, due to its potential this fruit is regarded to be one of the "invincible" devil fruits.
Beyond weather clouds, Kong can make use of the many different types of clouds utilized by Sky Island natives. He can produce nearly invisible clouds in the forms of string to restraint opponents, clouds that hold the properties of swamp, and even produce clouds as hard as iron to further his weapon crafting abilities.
As with all logias, the Kumo Kumo no Mi grants Kong a form of intangibility by transforming into clouds. While transformed, Sakura becomes invulnerable to attacks that aren't shrouded in Busoshoku Haki. By transforming into one of his cloud variants, Kong can electrocute, freeze, shred or apprehend targets who attempt to hit him. Additionally, in this form, Kong can freely manipulate his own body in any shape.
Sakura can also manipulate pre-existing clouds...