It's not just a female Riolu in a Great Ball I'm trying to get (I already have two), it's a female Prankster Riolu I want in a Great Ball. That means knowing someone with a Riolu in their Friend Safari.
I have someone on my Friends list now who has it, and I'm currently trying to get one. Next on the Kalos bucket list though is an Absol safari.
If it was originally an egg move, it should be able to. I was actually thinking of checking since I noticed your other Charmander had Dragon Pulse and this one seems to have been used for breeding since its leveled up. Thanks for the heads up!