During set-up, shuffle 5 Omen Tiles into the Draw Stack in the same manner that you would shuffle in Wax Eaters. Omens act as a countdown clock. As each Omen tile is revealed place it alongside the board. Upon revealing the 5th Omen, the endbringer arrives. Place the Endbringer token on top of the Draw Stack.

At the end of each Prisoner's turn, discard a tile from the top of the Draw Stack. This effect continues until Final Flickers begins.

If playing with the Dirge, use 5 Omens when playing with both of these Night Terrors. The Dirge activates after 2 Omens are drawn as usual.