Opening a Warp Gate

During the Stygian Wars, alpha Legion forces would often infiltrate Imperial worlds where the location of small warp gates were known about.  Alpha Legion Psychers would then open the gates and unleash a small Daemonic incursion onto the planet in the hopes that the incursion would pick up enough steam to turn into a full fledged Daemonic invasion.

I use this piece both as an objective marker and as a portaglyph with my daemon army.