Tibicenas
Ghul Djinn and Chaos Lord
Tibicenas is a Ghul Djinn whose ambition to rival King Efreet led him to experiment with Chaos and brought about his exile. He resents being compelled to serve Zahart through a ring, but has no objection to imposing the same loss of freedom on someone else. Once freed, he enslaves Zahart and declares his intention to conquer Lore. Even being stripped of his Djinn powers by Efreet does not remove his Chaos, though the Hero defeats him.
An account from the distant past presents a different role for someone of the same name. A Tibicenas fought among the Heroes of Balance with Xing against the Queen of Monsters and mourned a fallen companion. Whether this was the same Djinn remains unclear.
Sources
AQW Wiki: Tibicenas Monster · Tibicenas in the distant past (game dialogue) · Sphinx Awakens · Sphinx Defeated · Hero’s Wish · Tibicenas Defeated