Litleo first appeared in Xenial Destiny: The Prelude Part II under the ownership of a Team Flare Grunt. It was being held captive by the member, whom had kidnapped it from it's mother when it was a child. After discovering the betrayal of Inkay and sensing it's pain, Lexi sneakily swapped Inkay and Litleo's Pokéball's. When Lexi tried to escape, she was confronted by a Team Flare member, of which the Litleo escaped it's Pokéball to save Lexi from being injured. After the Team Flare members had departed, the Litleo agreed to stay under the ownership of Lexi.
In The Burning Reflection!, Litleo confronted the Team Flare member whom abused it during it's time as a Team Flare Slave. After a heated battle, the Team Flare Grunt tries to burn the group alive by firing an explosion through Reflection Cave, however, Litleo evolved into Pyroar and contained the blast from causing the group any real harm.
Pyroar had his final standard battle during the Elite Four, where he was used in Lexi's team against Wikstrom, helping win the battle. His final appearance was in M06 where he battled against the forces of Team Flare. He then was sent to the Kalos Ranch where he remains to this day.
Pyroar has a cut throat attitude to battling, in which it will quickly and rapidly fire its incinerating breath of 10,000 degree heated fire.