Jackie Orlorn Lantus:

A conniving con artist that likes to lurk in caves and caverns, luring in unsuspecting travelers and adventurers by pretending to be a guide before mugging them and taking their posessions before eating them or turning them into her personal toy. Being a warlock of the Genie, she posesses a lantern built into the glowing orb on her staff that contains a pocket dimension she can travel in and out of to store her ill gotten gains. It also serves as the domain of her wind genie patron Djinni. She doubles as an Arcane Trickster rogue to get access to the size changing spells...As well as being able to summon a familiar that often takes the form of a small imp or pixie.

However on one mugging attempt the adventurers got the upper hand, being a misfit group containing such strange companions such as a Mimic and Mindflayer. In exchange for sparing her life for the attack, the Deep Gnome was shanghaid into the party of misfits as punishment. Doing her part to help the party, but can't resist the alluring call of mischief when the opportunity presents itself.

Adopted from  vanillizard-paranoia though I added in the shading and glowing effects myself.