Dark Corner of Fangorn
Into Fangorn Nightmare#7 (x2)
Location
3 (5)
Forest.  
While Dark Corner of Fangorn is in the staging area, each Huorn enemy loses the hunder keyword.

Forced: After Dark Corner of Fangorn becomes the active location, each engaged Huorn enemy makes an immediate attack.

"...it is perilous to touch the trees of that wood, it is said."
-Aragorn, The Two Towers