Kaido isn't a mythical fish. He's a dragon. And only dragon.
Same was Drake isn't a dragon. He's a dinosaur. Just a dinosaur.
The names of the devil fruits are references to Japanese. They aren't literal descriptions of what the powers are.
Kaido has a plain dragon fruit. And by that mean like how Marco has a plain Phoenix fruit. His fruit is called "bird bird mythical phoenix" but I don't say "Marco has a bird fruit". I say "Marco has a phoenix fruit"
Kaido has a dragon fruit. The fish part is a reference
Same was Drake isn't a dragon. He's a dinosaur. Just a dinosaur.
The names of the devil fruits are references to Japanese. They aren't literal descriptions of what the powers are.
Kaido has a plain dragon fruit. And by that mean like how Marco has a plain Phoenix fruit. His fruit is called "bird bird mythical phoenix" but I don't say "Marco has a bird fruit". I say "Marco has a phoenix fruit"
Kaido has a dragon fruit. The fish part is a reference