The Voice of Isengard #24 (x1)
(1) 4 7 4 8
Orc.   Uruk.  

Cannot have attachments.

Forced: After Mugash is defeated, the first player attaches him to a hero he controls and exhausts that hero. Counts as a Captive attachment with the text:

Attached hero cannot ready. If attached hero leaves play, the players lose the game.