Hey Sensei, If none of us can't rng capture a riolu in the safari zone, then maybe we can try rng capturing it in the wild on the 5th gen. games.
The guide and serebii says that riolu can be found the wild in the challenger's cave, right?
If that is true, maybe we can rng capture a non-shiny riolu with a great ball and shiny riolu with luxury ball (or something else). :)