Sadie

Unexpressive and stoic, Sadie often comes across as aloof, but contrary to her demeanor she has a strange sense of humour and whimsy. She loves playing pranks despite never seeming to smile or laugh. She's a little bit ditzy and has a terrible sense of direction - when not otherwise occupied by wishes and lepi-related business she often wanders off and gets lost in ridiculous places.  She likes pretty things and collects jewels and anything that shines or sparkles. 

I haven't decided on the master situation, but she grants wishes in tandem with Shine.