Wainrider Captain
The Massing at Osgiliath#5 (x3)
Enemy
(40) 3 3 3 4

When Revealed: Move the top Scout enemy from the encounter discard pile to the staging area. (Top 2 Scout enemies instead if the players have crossed the Anduin.)

Shadow: If this attack is undefended, attacking enemy gets +2 if it is a Scout.