Riolu has to really really like you
To evolve Riolu into Lucario you need to level it up when it is compeletly happy with you during the day.
You don't need anything special, just train it to level 23.
it evolves at level 28 and an easy way to do it is put exp share on it and go to to the Pokemon league
The population of Riolo Terme is 5,556.
Vince Riolo was born in 1947.
The area of Riolo Terme is 44.5 square kilometers.
Alessandro Riolo was born on 1978-11-16.
David Riolo was born on 1972-04-20.
Walk 2000 steps.
Walk a lot of steps.
No, you do not need a stone to evolve Riolu. To evolve Riolu, you have to make it happy in the daytime. The quickest way to do this, instead of battling with it like crazy, is to first give it a soothe bell. Then feed it poffins, give it those nutri drinks like zinc and carbos to its max. Then level Riolu up a level and he should evolve into Lucario. -Hope this helps! ;)
i think you have to have a riolo our lucario