Lucario

Lucario (Japanese: ルカリオ Rucario) is a Fighting/Steel-type Pokémon introduced in Generation IV. Lucario is a jackal-like Pokémon that nears four feet in height (3'11" exactly). It stands on two feet like its pre-evolved form Riolu. Lucario is a dog/wolf-like Pokemon, with a few kangaroo-like characteristics as well. Though similar in appearance to Riolu, Lucario has some notable differences. Its forepaws are black and it has large pointed spikes in place of the oval shaped bumps on Riolu. There is also a third spike in the middle of its chest. Lucario's ears and muzzle are longer in comparison to Riolu but it retains the black "mask" and red eyes. The "mask" also has an added upper stripe. It also has four black appendages on the BACK of its head opposed to Riolu, who only had two and were previously located on the side of its head. Additionally, Lucario's torso is covered in yellow fur.

Known as the Aura Pokémon, Lucario are sensitive to a special type of energy called aura. The black appendages on the back of its head are used to detect the auras of creatures and objects around it. With its ability to sense the auras in all things around it, it can navigate and TRACKthrough telepathic methods. They can also guide the waves of an aura in an offensive manner to create small balls of energy such as Aura Sphere. Lucario are also able to understand human speech; it is said that Lucario can also speak it, though only Sir Aaron's Lucario has been shown to do so and only through telepathy. Lucario has a high attack stat and is also very fast.