Midgewater
The Black Riders #48 (x1/x1)
Location
3 (6)

While Midgewater is the active location, enemies cannot attack, take damage, or be engaged.

Forced: After Midgewater becomes the active location, return each engaged enemy in play to the staging area.

...there was no permanent trail even for Rangers to find through their shifting quagmires.
–The Fellowship of the Ring