This falls under keeping the PC's on their toes.
Does anyone allow SM for fey creatures, dragons, etc?
I'm thinking of allowing it as a natural ability or learned skill, like PC's. I rule SM per Spell List.
What would a pixie have.. +20? A dragon +100? Could be a function of lvl or Type.
I might give "magical creatures" a base +50. IDK.. My reasoning is that a mature dragon can probably tweak their spells beyond the parameters of what is taught to mere mortals. They still have to roll, but they've had time to practice.
If you add Research, then their spells or whole Lists can be modified beyond the norm. Now you only have to roll SCSM (I require SCSM for all spells.).
They might not be good at traditional Library Research; they don't know the Dewy Decimal System. Yet, again, they should be able to bend spells to suit their needs. Once researched, the mods are permanent. Their magic culture, Aura whatever could facilitate the mods.
Anyone else deal with this?