—Doctor Strange[source]A weapon that uses the almost infinite power of a Cosmic Cube to cancel out mystical energy. If I had left a part of my spell in that contraption--Tony, is this your "Strangebuster"?
History
The D.O.M.E. was a facility located in the Blue Area of the Moon established by Tony Stark as a countermeasure against magic. It was manned by a group of extraterrestrial immigrants personally processed by Stark during his tenure as director of S.H.I.E.L.D.; a species of builders who chose to stay on the Moon since they preferred solely each other's company.
The purpose of the facility is to annihilate magical targets. After being provided a sample, the D.O.M.E. shatters a Cosmic Cube in its power source chamber and forces the resultant burst of energy to oscillate in reverse pattern of the sample mystic energy. The energy is fired through a cannon and hones in on anything sharing the sample's energy signature.
The D.O.M.E. was used by Iron Man to repel a demonic invasion after he became infected by The Key and unwittingly opened the door to a demonic incursion once he killed The Lock. Doctor Strange uprooted The Key from Tony's body and it was used as the sample to calibrate the D.O.M.E.'S energy cannon to destroy the invading demons.[1]