>What do we we know about these various spirits of air, fire, and so on. Has anything we've done fallen understand that classification system, or anything we've seen the enemy do? (Or if it's easier, have either of us broken outside of it)
>The extent of your knowledge about the magical spirits of the various elements is not much beyond that they exist. Patchouli mentioned the six elements of magic once or twice, in passing, and that her family had a particular affinity for the element of Water, but not much else.
>You also are aware that different magics use different elements as their base. Kiku and her order, for instance, use the five elements of the Beasts: Water, Earth, Wood, Fire and Metal. As a miko of the Metal Tiger, and from what you've seen of Kiku's power, it's a very safe bet she specializes in Metal magic.
>The properties she mentioned vanadium possesses would seem to affect the Six element system of the west: Fire, Ice, Water, Earth, Forest and Air.
>The powers you've demonstrated so far do not seem to rigidly adhere to either one of those systems, or any system of magic you're aware of.
>As regards to the enemy, you've not seen much concrete about them. The two youma the first demon created were made of a gold ring, and then a gold pendant, so it's possible she could be a specialist in Metal magic herself, if not a Metal spirit, assuming such a thing exists.
>In terms of the second demon, the one you're tracking now, the sensations and phenomenon you've encountered so far would lead you to suspect that it has an affinity for Water, albeit the dark, sinister, evil side of water. Considering that Water is an element of both systems, and you know next to nothing about either one, you wouldn't be able to guess which system this demon is using, or belongs to. Assuming it belongs to either one.