when and how does riolu evolve

Riolu is the first star of a new Pokémon GO event—Hatch Day! riolu Riolu is a Pokemon available in Pokemon Brilliant Diamond and Shining Pearl and evolves into Lucario when it levels up with high riolu Riolu Lucario 0448 Type Fighting Weakness Flying The pure of heart are met with Riolu's approval, while those of ill nature earn only its loathing

riolu Riolu es un Pokémon bebé de tipo lucha introducido en la cuarta generación