Shadow of the Void

Shadow of the Void is an ability being used to summon forces through the void. The forces occurred with Zealot, Archon, Stalker and even Hybrid.

The ability was display by Amon to pursue Zeratul in Temple of Erris during Evil Awoken mission. When he try to escape the temple after obtaining the final piece of the Xel'Naga to prevent the Prophecy from the fallen god, that try to destroy the whole Milky Way to remake the whole universe.