Jasper

Jasper is a representative of the five genie tribes, despite being human himself, and is found near (outside of) the Duel Arena, just north of Mubariz. He can remove the chance to receive combat experience from genie and patchwork lamps, and also from the Lamp of the Djinn. He will also exchange bottled genies for Medium XP lamps after June 24. At this time he will also provide one Patchwork lamp for each Genie lamp part you give him.

Trivia

 * When spoken to before the genie lamp update on 14 June he claimed his "purpose [would] become clear soon enough".