riolu evolves via friendship
In order to evolve Rilou you have to become great friends with it.
Rilou Evolves Into Lucario At Level Thirty With Happyniess PEACE,OUT!!
it eloves at a high freindship lavel
you need the sun ribbon
Riolu evolves by happiness during the day.
You can have an egg with a ditto at the Pokemon daycare center with your riolu and evolve that Pokemon into a Lucario.
Riolu is a fourth generation baby Pokemon. It will evolve into Lucario when its happiness is maxed and it is leveled up during the day.
you cant. on iron island team up with riley till you get to the end of the cave then he'll give you a rilou egg.when the egg haches level him up. "friendship evolve". or if you have a exp share you can give it to rilou "make sure rilou is in your pary" get one of you strongest Pokemon and battle Pokemon that it's level are higher than rilou and he will get some points and rilou's level goes up . hope this helped.
in luminous spring it has to have at least 2 IQ stars and you have to have a Sun ribbon
level it up to 30-50th level. ANd yr rilou is spelled wrongly, it is riolu.
Weavile does not evolve in Pokemon Black.
All the starters evolve in Pokemon Black. Many other Pokemon evolve as well.