Lucario is one of the most iconic Pokémon ever for various reasons. First of all, it has a really cool design, is a fighter in Super Smash Bros., and is a very strong Pokémon to have on your team in Brilliant Diamond and Brilliant Pearl. A couple of times you will have to face a Lucario on your journey, including Cynthia for the title of Pokémon Champion. Here are Lucario's weaknesses and our tips for countering one.
What is Lucario weak against?
Lucario is a Fighting and Steel-type Pokémon, but its weaknesses are related to its Steel side. Fire and ground attacks are most effective against it, with combat hitting it as well. The moves we recommend are Fire Blast, Inferno, Flamethrower, Earthquake, Dig, Cross Chop and Close Combat.
Although you have three areas that are strong against Lucario, the following are moves that don't deal much damage: Dark, Normal, Bug, Rock, Steel, Grass, Ice, and Dragon.
Lucario is a strong and fast Pokémon. For this reason, we recommend Pokémon that can take its hits and survive or beat it over time. If you picked Chimchar early in the game and now have an Infernape, we highly recommend using them due to their speed and attack stats. Outside of these, we recommend Rapidash, Garchomp, Machamp, or a Mew you've taught fire moves (watch out for incoming Dark attacks). Although Steel Pokémon have a type advantage with their attacks, if the opposing Lucario has any Fighting moves, they will take you down quickly.