I need a nickname for a male Riolu. (It's going to evolve eventually, if that helps.)
Lucas, Lance, or Mr. Badass. XD
Destroyer of worlds... XD
How about... Lancelot
Joshua, Leonard, Dewott, or Zekrom jr.
Go with Ryu for a Street Fighter reference.
Adam, Randal or Cris P. Lettuce
You should always name your Riolu Aura. =w=
I named mine "Anubis" since that's the Egyptian God that it's based on and I think it's pretty cool xD
So when it evolves, it's Lucario Skywalker.
Heh, a Riolu. That makes me think of the name Ryoga or Rio (as in Shark or his awesome sister from Zexal).