Orc-chieftain
The Road Darkens#45 (x1)
Enemy
(40) 4 4 3 6
Orc.   Uruk.  
Cannot have attachmnets. Allies cannot defend against Orc-chieftain.

Forced: At the beginning of the encounter phase, Orc-chieftain engages the first player.

...he charged into the Company and thrust his spear straight at Frodo. -The Fellowship of the Ring