|“||Why Master? Why?||”|
Over 1,000 years ago, before the Invention of Poké Balls, Lucario served Sir Aaron, who in turn served Lady Rin, the Queen of Cameran Palace. Years later, in present time, he helped Ash Ketchum save the World but at the cost of Lucario's own life.
1000 years ago, Lucario served Sir Aaron, who, at that time, sacrificed his life to end the war going on between two armies of Pokémon and to save Queen Rin's kingdom, thus becoming a legend, although Lucario did not know. Lucario thought that his master had betrayed him and his kingdom. But then later in the movie Lucario realized that Sir Aaron didn't betray him or the kingdom.
Lucario was originally respectful towards his master, Sir Aaron but after Sir Aaron died, Lucario, unaware of his master's sacrifice lost all respect for Sir Aaron and grew hostile and cold towards anyone it met.
|Aura Sphere||Lucario and the Mystery of Mew|
|Detect||Lucario and the Mystery of Mew|
|+ indicates this Pokémon used this move recently.*|
- indicates this Pokémon normally can't use this move.