Lucario is considered proud and is extremely loyal to his Trainer. At the same time, he seems to have a natural sense of justice, as he trusts only Instructors with the right hearts.
It is an extremely rare Pokémon that lives deep in the mountains, usually very far from people, in order to improve its skills.
Lucario are carnivores that hunt their prey in packs, but one Lucario has been seen to eat fruits and plants such as roses. Although chocolate is not part of his natural diet, he has also been seen eating chocolate.
