riolu evolves by friendship in the morning. there are a few ways that you can raise their friendship level. here are some tips:
1: you can feed them their favorite kind of poffin
2: if you carry it with you, it will bond with you.
3: don't let it faint!
4: give it stat-raising items such as carbos, protien, or iron (veilstone department store)
5:give it a soothe bell to hold
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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! ;)
riolu dosent need a stone just raise it intell its lv46 that's what level mine evolved at.
riolu doesnt evolve with lv im afraid. like eevee needs maximum happiness in the day to evolve into espeon you need to lv up at maximum happiness in the day to evelve riolu into lucario. i know its anoying when that happens!
Riolu evolves when Level Up by Happiness Value at 220 During the Day
feebas evolves into milotic -------------------------------------------------------------------------------------------------------- You need to max out it's beauty to evolve it. This is done through using dry poffins. By Lushbob