For a Litleo to evolve into a Pyroar, it must perform one of the most difficult feats imaginable in the pokemon world: chasing down a live Pidgeot. Pidgeot, of course, are not only one of the world's fastest pokemon, capable of flying at twice the speed of sound at full acceleration, but they also fly well above the reach of any Pyroar's claws. Yet through using fire and sound attacks cleverly from a distance, and a great deal of tracking and endurance, Litleo who wish to evolve must eventually prove able to take one down. In this battle – one where they are already outmatched - they must take special care not to damage their target's hair with their flames. For after using their claws to give the hapless Pidgeot a haircut, Litleo attach the hair to the small tuft of fire on their head; when it catches fire and fuses to the body, they evolve into Pyroar.

A Pyroar's stolen hair is not consumed by the flame, but burns perpetually once it is fused to the body. Female Pyroar wear it in the style of their Pidgeot trophies, while the males carefully style it into a billowing mane in order to protect their necks and communicate their virility. Regardless of sex, Pyroar take pride in their manes; the males complete to burn with the largest manes possible, while the females take inspiration from their avian trophies and use their speed not only to hunt prey, but to race against one another at speeds which have seen them called the Pidgeot of the land.

Many researchers have understood prides of Pyroar as created not by kinship or hunting advantage, but by a shared bond forged in victory over an extreme challenge; they are societies of champions.