Rohirrim Scout
Challenge of the Wainriders #61 (x3)
Ally
[2] 1 1 0 2
Rohan.   Scout.  

Action: Discard Rohirrim Scout to choose a non-unique enemy in the staging area. That enemy does not make engagement checks against you this round.

Swiftly a scout rode back and reported that wolf–riders were abroad in the valley...
–The Two Towers