User blog comment:Woest/Element consumption by Slayers/@comment-25231730-20140727121722

I think Slayers cannot eat the magic that they generate. Meaning Natsu can't eat his own flames, but ha can eat ANY other flame. If there were two Fire Dragon Slayers, they would be able to eat each others fire. Same with Gray. He won't able to eat his Ice-Make, since it's magic generated by his body. And no, i don't think Lyon would be able to learn Ice Devil Slayer Magic.Its like saying a fire mage can learn Fire Dragon Slayer Magic.