User blog comment:LastationLover5000/Putting a Stop to Dragon Slayer Foolishness/@comment-5004454-20121011183947/@comment-4666155-20121012010328

Also, limiting it to consumable things is merely to keep a leash on this magic, Zikimura. Dragon Slayer is used enough (I cannot talk, I have a few myself, and the moment Lightning-Fire Dragon Slayer was shown, I damn near immediately made a character who had it...), this is just to keep the elements used within reasonable constraints.