Monkey D. It is the only known awakened Mythical Zoan Devil Fruit. When the fruit is awakened, it transforms Luffy into his most powerful form yet (known as Gear 5), which has the capacity to modify the environment, including live creatures' flesh, and turn it into rubber to deflect attacks.
8/8 Awakened Zoans Of Impel Down
The first time fans saw Awakened Devil Fruits in One Piece was during the Impel Down arc, where the Jailer Beasts were shown to have Zoan powers. All these Zoan powers were awakened, as explained by Sir Crocodile, one of the Shichibukai.
Four of Impel Down's Jailer Beasts are known to be awakened Zoan Devil Fruit Users, giving them enhanced strength, speed, and durability. They also stay in their animal forms with human attributes, and they act on pure instincts.
One Piece finally answers a question that has been splitting its fanbase for a long time, by giving proof that the powerful former Yonko, Kaido of the Beasts, never actually awakened his Devil Fruit.
He is a zoan-type, so let's look at some awakened Zoan users: The Guards of Impel Down. Crocodile confirmed that they are awakened Zoan types and stated that they have extreme physical toughness and can recover very quickly.
The Uo Uo no Mi, Model: Seiryu is quite easily the strongest Zoan Devil Fruit in the story so far. It was eaten by none other than Kaido, one of the Four Emperors, following the major battle on God Valley, 38 years ago. This Devil Fruit grants him the ability to turn into an eastern dragon and its hybrid at will.
However, while it may be awakened it hasn't currently been shown to be so. Especially for the Strawhats, but as we've seen with Doflamingo and Katakuri, Oda has them explicitly mention they are now in their awakened state.
Law waited 13 years to avenge Corazon and only relied on Luffy to take Doflamingo down as a last resort, meaning the fruit likely hadn't awakened at the moment. However, sometime after this arc, Law's Devil Fruit powers awakened and his strength multiplied by several times.
According to him, the best way to stand on top of the world is Haki, another mysterious power in the series, born not from desire but from willpower. This means that Kaido's reliance on Haki made him less inclined to fully master his Devil Fruit abilities, including the awakening.
For Kaido, it is more likely that Flame Dragon Torch is his Awakening, or instead, he simply doesn't have one because he's too strong for his enemies either way, just like his fellow Yonko, Big Mom.
Mythical Zoan-type Devil Fruits are the rarest subtype of the Zoan class in the One Piece world. Thought to be even rarer than the Logia types, the Mythical Zoan-type Devil Fruits offer quite interesting abilities that allow the users to turn into a mythical creature or their hybrid at will.
Zoan type devil fruits are one of the three types of devil fruits; what's more, these are further subdivided into other groups, with Mythical Zoans being the rarest.
Logia. The rarest and most powerful of the three Devil Fruit types, Logia-type Devil Fruits allow their users to create, control, and transform their body into a natural element, such as smoke, sand, fire, lightning, ice, light, magma, mud, snow, plants and even darkness.
The Gomu Gomu no Mi which is also referred to as “Hito Hito Model: Nika” It is a Mythical Zoan-type Devil Fruit that enables the user's body to stretch, making the user a rubber Human (ゴム人間 Gomu Ningen).
Like the name suggests, he can transform into a massive winged dinosaur. Being a Zoan, King is a ferocious fighter in close combat. Charlotte Katakuri, Big Mom's right-hand, awakened his Devil Fruit powers, so there's a possibility King could awaken his power as well.
What I mean by a Logia Awakening is that their power takes on a will, or mind, of its own. It expands rapidly and behaves chaotically, like a true "force of nature", consuming everything and completely transforming the battlefield into utter chaos which represents their Logia's element.
However, that's not to say that Kaido has never lost. It is a known fact that Kaido has lost to his fellow Yonko and the Navy a combined 7 times and been captured a total of 18 times.
After awakening the power of advanced Conqueror's Haki and later awakening his devil's fruit, Luffy was finally able to put up a fight against Yonko Kaido and match him in combat.
The powers Sanji's awakening come from his father, Vinsmoke Judge, or more accurately are a result of his experiments. While in his mother's womb with his three brothers, Judge performed experiments on the fetuses while they were developing in order to turn them into merciless superhuman soldiers.
The Reason why Law can't kill Kaido by simply taking his heart out and stabbing it - One Piece. It's very simple. Law's Ope Ope no Mi devil fruit grants him no cutting abilities. Law needs to be strong enough to cut and kill someone to perform his surgeries.
Surprisingly, Kid got a major power-up in his fight against Big Mom, and it was revealed that he had awakened his Devil Fruit some time ago.
Having achieved awakening of his ability, Law is capable of coating objects with the space-distorting essence of his Devil Fruit, allowing him to increase their size and/or make them phase through targets, so he can operate on said targets from the inside.
Luffy has the powers of the Gomu Gomu no Mi, a Paramecia type of Devil Fruit that has turned his body into rubber. He's mastered the powers of the fruit to quite a high degree and is just moments away from awakening its powers.
Despite being the second most common type of devil fruit, there have hardly been any zoan type users who have awakened their devil fruits, and there is a big reason behind this. In the most recent edition of "Road to Laugh Tale," Eiichiro Oda revealed that zoan type awakenings can prove deadly to their users.
To everyone's surprise, Luffy, who was always believed to be a user of the Paramecia type Gomu Gomu no Mi, is actually a user of a Zoan type Devil Fruit. Furthermore, this isn't just any Devil Fruit, but a power described to be "the most ridiculous" to exist in the entire story.