Balchoth Avenger
The Siege of Erebor #15 (x3)
Enemy
(29) 3 4 2 5

Forced: After Balchoth Avenger attacks and damages a character you control, choose 1: Balchoth Avenger moves west, or deal 4 damage to 1 hero you control.

…between Mirkwood and the River Running, a fierce people now dwelt, wholly under the shadow of Dol Guldur.
—The Return of the King