Lucario

Lucario is a character in the Pokémon series. It is set to appear in the 80th episode Lucario VS Renamon, where it'll face off against it's rival Renamon from the Digimon series.

One Minute Melee
Lucario also appeared in One Minute Melee, where it fought it's rival Renamon, which ended in a draw.

DBX
Lucario also appeared in a DBX episode, where it fought Ryu from the Street Fighter series. He ended up losing to him, and caught in by Ryu in his Pokémon Go app.

Trivia

 * Lucario is the 6th Pokémon to appear in Death Battle
 * The first were Pikachu, Venusaur, Charizard, Blastoise, and Mewtwo
 * Lucario is the Pokémon in Death Battle to not be from the first Generation.
 * Lucario is also the second Pokémon to fight a combatant from the Digimon series, with the first being Charizard (and Red) who fought Agumon and Tai.