Happy 500th to me... Deviation, that is!
Yes... This is my 500th deviation I've submitted on here, and what better way to celebrate it by drawing my favorite matchup that I've drawn, Absol and Lucario.
***Note: This description is fan-made, and not an official plot from the anime***
Back in time, Sir Aaron's Lucario developed a rivalry, which was known only to him and his opponent. His opponent was a red/maroon-armored Absol. Thus, the origin of their rivalry is unknown. As the war was set to begin, Absol sensed that Lucario was nearby, and called the Houndooms away, so that he could deal with the Aura Pokemon himself. They obliged, and the two decided to see who's truly stronger. However, the battle was interupted. The war got too close, and the two were called upon for separate and different reasons. Moreover, as the rest of the plot went on, the rivalry never was officially resolved.
The Absol has extra armor on because of the fact that he is known as The Dark Assassin. Thus, the black armor was added to his body.