I'm gonna using them for battle of course! I'm gonna evolve all the Riolu to Lucario and create my army of Lucario! And for the Vulpix I haven't really thought of it. Since making army of Ninetails is impossible because Vulpix needs fire stone to evolve but I'm sure I'll use them for various entertainment. I'm gonna use some for myself probably battle, some for contest, and some I could give to my friend who haven't got far in Pokemon, yeah they might need one and I might also trade one for Pokemon I don't have and stuff yeah.