Riolu

Riolu (リオル) is a Fighting-type baby Pokémon introduced in Generation IV. Characterized as the Emanation Pokémon, it is a small, bipedal creature known for its blue and black fur and its unique ability to perceive and communicate through auras. These auras allow Riolu to visualize emotions like joy or rage as waves and to alert its kin by intensifying its own aura when feeling fear or sadness. Despite its small stature, Riolu possesses remarkable physical endurance, capable of crossing two canyons and three mountains in a single night. It is described as loyal, energetic, and persistent, often seen sleeping in a sitting position to mimic its evolved form. Riolu evolves into Lucario when it reaches a high level of friendship with its trainer during the daytime.