You are the 5 year old child of one of the 4 emperors of the sea. The legendary kaido, you inherited have the Ability to transform in a dragon

Your father is expecting you to master every ability

He is in his dragon form same as you. He preferred to stay a dragon to intimate you more

Kaido: that's all? Just a tiny little flame from your mouth? And you call yourself my child? Your just pathetic! That's a real fire blast!

kaido shoots a giant flame from his mouth. Destroying a mountain