Okay, here's the Sponsored Magic. It's kind of ramshackle and it's not particularly based in mythological accounts of the jinn, so take it with a grain of salt.
JINNI MAGIC [-4]
Description:You wield the power of a wish-granting jinn.
Sponsor:Theoretically God, but more directly one of the wide varieties of jinn that exist. If you yourself are one of these creatures, this magic is self-sponsored.
Agenda: To grant the wishes of others.
Evocation: Jinni Magic evocations typically involve the elemental affiliation of the jinni who sponsored the power-fire for ifrits, water for marids, air for djinni, and earth for shaitan.
Thaumaturgy: Within it's limited capacity, Jinni magic rituals are some of the most powerful in the world. Jinn have raised mighty palaces in moments, tranfigured armies into toads with a gesture, and tamed dragons with a word. Jinni magic can be used for almost anything, so long as it is not for the caster.
Evothaum:All rituals that can be cast with Jinni Magic can be cast with Evocation's speed and methods.
Extra Benefits: You gain a free +4 bonus to complexity/control of any Jinni Magic ritual if the person you are performing the ritual for (the "master") expends a Fate Point or willing takes on a point of Sponsor Debt.
The whole goal here is for you to not get the full power of this for yourself. Jinni magic is at it's most powerful when you're using it for someone else. I'll see if i can do a writeup of an actual djinni later.