User blog comment:Njalm2/Nanja's Grimoire: Evocation/@comment-18812574-20151231164504

I'm a bit confused as to why evocation would only take the forms of pre-existing energy, such as heat, etc. Is that simply because it is faster to use, since the energy is already there? Because I can concievably imagine a Hadou spell that uses a stream of highly pressurized water to cut or shoot through a target, for example. Although it is true that any form of "elemental" Kidou (outside of the aforementioned lightning and fire) are practically non-existant in canon. I would have liked a bit more explanation as to why that is though.