Mike the Spike

A Dybbuk is a form of malevolent spirit originating in Jewish mythology.

History
Rory Regan referred to Prometheus as a 'dybbuk' after reviewing the S.T.A.R. Labs security footage Cisco Ramon had sent Team Arrow that showed the villain vanishing after breaking Laurel Lance out of the Pipeline.

Behind the scenes

 * While a Dybbuk has yet to be seen on-screen, it's entirely possible that they do exist in some form outside of Jewish mythology within the Multiverse's canon given John Constantine's interactions with spirits and other supernatural forces.