Riolu
The Emanation Pokémon
Type: Fighting
Official Registration #: 447
Entry: Riolu have the ability to read the emotions of others as well as communicate its own emotions via aura. Yet it is a fighting-type, the single most likely type to engage in physical combat and thus the most likely type to endure great physical injury. For this reason, the riolu’s empathic abilities may be among the most counterproductive powers among the pokémon kingdom. However, at the very least, it should be a comfort for riolu trainers to know that the state will typically pay for any service a Nurse Joy provides, including mental counseling as a result of being in close proximity to a fighting-type that translates its pain into horrific light patterns.
Lucario
The Aura Pokémon
Type: Fighting/Steel
Official Registration #: 448
Entry: The evolved form of riolu, in response to both levels of sunlight and closeness with its trainer. Well-trained lucario have the abilities to sense the aura of all living things, understand human speech, read the thoughts and emotions of those whose auras they sense, channel aura into projectiles and weapons, execute extraordinary feats of physical prowess, and roll over and play dead for biscuits. This is why lucario are the second most popular pokémon on any given video sharing website, next to the members of the skitty line.
The Pokédex According to Bill 