When Revealed: Randomly select 1 ally controlled by the defending player, if able. Discard the top card of the encounter deck. If the of the discarded card is greater than the of the selected ally, that ally is immediately corrupted. If no ally is selected by this effect, Fell Voice gains doomed 3.

And Túrin being under the spell of Glaurung hearkened to his words, and he saw himself as in a mirror reshaped by malice...
–The Children of Húrin