Arador's Bane
Across the Ettenmoors #79 (x2/x1)
Treachery

When Revealed: Starting with the first player, each player must either engage an enemy in the staging area with a higher engagement cost than his threat, or search the encounter deck and discard pile for a Troll or Giant enemy and add it to the staging area. Deal each enemy that engages a player through this effect 2 shadow cards.