What kind of fruit is Cardo?

In One Piece, the Four Emperors Kaiduo is known as "the strongest creature on land, sea and air", which can be transformed into a dragon, and its strength is extremely terrible. Some time ago, the fruit of Kaiduo was also announced. Although it is indeed a phantom animal species of the animal department, it is not the dragon fruit or snake fruit that everyone imagined, but the fish fruit.

Kaiduo is one of the "Four Emperors" in the new world, and the reward is 4.6 billion 1 165438 Vamberley. He is a member of the "Four Emperors" who announced the highest reward among the living pirates. Fish, fish, fruit, animal species, and blue dragon morphological ability. He was born in the kingdom of Waka and was a trainee pirate of the Roxburg Pirate Corps. After he left the Roxburg Pirates, his strength rose instead of falling. Many pirates surrendered by virtue of their great strength.