This bizarre, spiked building appears to grant Scrin Foremen access to the most advanced and dangerous air/spacecraft that the aliens have to offer, namely their Planetary Assault Carriers and foreboding, glacially slow Motherships. Notably, the Mothership will materialise wherever this building is placed when it is summoned, and while this construction does indeed allow the summoning of a Mothership, it still comes at great Tiberium cost. The building itself also consumes a reasonable amount of power. With this building the alien Foreman can call down support power called Overlord's Wrath and summon Wormhole that provide teleportation between two points on the battlefield for a short time.