Gate of Gondor
The Flame of the West #45 (x1)
Ort
5 (3)

Immune to player card effects.

While Gate of Gondor is the active location, each enemy in play gets -30 engagement cost.

Forced: When Gate of Gondor is explored, return each engaged enemy to the staging area.

...it was the key, the weakest point in all that high and impenetrable wall. –The Return of the King