My Little Droopy Pony: White gem

A pony angel named Darcie wonders upon a rude selfish traveler, but he takes her in. Why? Well he is selfish.. he wants the white gem she's the only one that can get it for him. He's annoyed by her presence but anything for the white gem that grants 2 wishes. Darcie is a girl with long black hair grayish blue eyes, ears on her head and a curly tail. She also has angel wings,.. The rest looks like a tiny normal human. She's a shy droopy pony that speaks in squeals her eyes looks like they're watering constantly.