Lucario (ルカリオ Lucario) is a Steel/Fighting-type Pokémon and is the evolved form of Riolu. Riolu evolves into Lucario by leveling up with high happiness during the day. Lucario are usually very polite and modest. Some can even talk, using Telepathy, are very powerful, and are considered by many the strongest Fighting-Type Pokémon in the games. According to legend, in the old times Lucario were teachers to humans and taught the first Martial Arts to them.