Liolaeus, commonly known as Rathalos in the Monster Hunter series, is one of the franchise's most iconic monsters. Dubbed the 'King of the Skies,' Liolaeus is a formidable flying wyvern known for its fiery breath, aerial attacks, and aggressive behavior. It serves as a flagship monster and a significant challenge for hunters in the game. As a recurring boss, Liolaeus plays a central role in the progression and lore of the Monster Hunter universe.