Youd get the ability to bend into shadows, light weight body and at higher levels fog body for limited time. at a few higher levels your Djinn could peak through and yhou'd get the ability to summon fire, along with a bit of pyrokinesis and wind gust.
When I say higher levels I mean later in the RP there will be no levels, just each mission you go on increases the affect of your bloodline.
Actually I liked Zalermancer's suggestion, so if you want limmited mirage, you'll have to train it for any thing convincing though.
Welcome one and All to the Jesters Carnival, where the prizes are greater than your wildest dreams, but the nightmares here shall silence you before you can even scream.