Staves, Leveling, and Keywords

[SaiyanHeretic]

So I'm adding some staves to my mod and after a little poking around, I found a set of mostly unused keywords for each school of magic: MagicSchoolAlteration, MagicSchoolConjuration, and so on. (A few spells and such from Dragonborn make use of the Conjuration keyword, but that's all.)

 

I plugged them in as a lark and found that my Fire, Frost, and Shock staves now level Destruction skill the same way spells do. So far, this doesn't seem to work for staves belonging to any other magic school. I traced things back to the Magic Effect forms, but even after testing, I can't find a correlation between the assorted values that would account for why only the Destruction staves are leveling.

 

Ideas?

Edited April 27, 2015 by SaiyanHeretic