In his studies, Xandu learned of the Wand of Watoomb and believed it could save Melinda. When his mesmerized thugs tried to steal the wand from Doctor Strange, they were opposed by Spider-Man as well. He tried to banish Spidey to another dimension, but Spider-Man snagged the Wand with a web-line before tumbling through the portal. When Xandu's thugs returned Spider-Man and the Wand, but Strange was active again by this point and defeated Xandu, supposedly removing his mystical knowledge.
Wand of Watoomb