The Dark Scepter is an mystic item stolen by the Witch to attack humanity.
The Witch stole the Dark Scepter and used it to overpower Wong's Magic and momentarily cast darkness over the British Museum. She later used it in combat against Kaecilius easily defeating him. The Witch was then confronted by Kaecilius, Wong, Daniel Drumm, and Tina Minoru, who overwhelmed the staff's power and stole it from the Witch. The Scepter was then placed in the New York Sanctum.
The Dark Scepter is able to cast momentary darkness over small areas, as demonstrated at the British Museum. It is also a weapon that can be used as a staff.