After beating the fifth gym leader, you can SURF to the city that is next to Jubilife City X3. Be sure to have an empty slot in your Pokemon party. When you arrive, go across the bridge and down to the boats to sail to Iron Mountain.

There is a guy named Riley at the mountain that wants to cross the mountain with you. Take him along and fight through the mountain until you reach Galactic Grunts 1 and 2. Riley has a L34 Lucario. The grunts have a Glameow and Goldbat. Provided you win, Riley will give you an egg that hatches into an L1 Roilu after you travel 6500 steps (or so).

You can clear the step counter application for the Poketech and use that to count your steps. Roilu is the pre-evolved form of Lucario and when it loves you in the day time it will evolve. Feed Roilu its favorite flavor (Poffin) or train it to L30. If you have the friend application, check that to see if Roilu likes you or not.

Submitted by Kenya the Lucario Trainer (chihuahuapuppygirl)