Lucario (ルカリオ Rukario, originally an anagram of Oracle). #448 in the National Pokédex, classified as the Aura Pokémon. Lucario first appeared as a central character in the film Pokémon: Lucario and the Mystery of Mew. Lucario is a Fighting/Steel type Pokémon that specializes in the mystical energy of Aura.
Lucario is normally based on a canine, though there are hybridization forms of them with other animals, from feline to even kangaroos to some. It's very important to check how they are portrayed in the artwork.