The fleet beacon is a protoss advanced building. Easily recognizable, the fleet beacon is built around a huge sphere carved from the largest and purest of khaydarin crystals. The beacon focuses psi through this sphere to strengthen and magnify the warp rift created by the stargate, allowing it to teleport the largest of protoss warships.
The Corsair pilot can focus their psychic energy through the vessel's Neutron Emitter, which creates psionic static which disrupts neural impulses and renders computer-directed attacks inaccurate. The web is drawn towards the magnetic resonance found in ores and minerals. This static prevents all ground units and buildings (including base defenses such as bunkers and missile turrets) from attacking while they remain under it, but does not prevent attacks from outside. Affected units may still be attacked and damaged by units outside the web.