Ran into this question during our game tonight:
Saruman is alone in Orthanc. The Free People Player played the card "The Ents Awake: Entmoot". The Free People player believed this would eliminate Saruman, since there were no units left in Orthanc after the play of the card. His argument: How could Saruman actually be safer with no units guarding him than he would be surrounded with Uruk-Hai?
The Shadow Player countered with: Since there were no units in Orthanc to begin with, the card could not be played.
How do y'all handle this situation?
TK