The Ruling Ring
A Shadow in the East#10 (x3)
Event
[0]
Master.  
Combat Action: Exhaust The One Ring and raise your threat by 1 to choose a non-Nazgul enemy engaged with you. Until the end of the phase, that enemy cannot attack you.

"He vanished. I have never seen such a thing happen before..."
-Boromir, The Fellowship of the Ring