Deeping Culvert
The Treason of Saruman #39 (x2/x1)
X (2)

X is the 1 more than the number of allies controlled by the first player.

Forced: When Deeping Culvert is explored, each player searches the encounter deck and discard pile for an enemy, reveals it, and adds it to the staging area. Shuffle the encounter deck.

Orcs had crept like rats through the culvert through which the stream flowed out. –The Two Towers