Accursed Forest
The Wilds of Rhovanion#38 (x2/x1)
4 (4)
Forest.   Dark.  
While Accursed Forest is in the staging area, "when revealed" effects cannot be canceled.

Travel: Reveal the top card of the encounter deck.

There was a breath of air and a noise of wind, but it had a sad sound.
-The Hobbit