Luffy’s has been unreal. After beating Kaido in Wano, he earned his title as one of the new Emperors. His Devil Fruit, originally thought to be the Gomu Gomu no Mi, is the Mythical Zoan-type Hito Hito no Mi, Model: Nika. This fruit gives him wild, cartoon-like powers when he enters Gear 5, making his fighting style more chaotic and more powerful than ever.
Luffy also uses all three types of Haki and has learned advanced versions of each. He can destroy enemies from the inside and use Conqueror’s Haki to boost his attacks. Taking down Kaido, who was seen as the strongest creature in the world, proves that Luffy’s not just catching up to the legends—he is becoming one of them.
