Free the Captives
The Sands of Harad#73 (x1)
3A-B (10)
When Revealed: Each player searches the encounter deck and discard pile for an Orc enemy and adds it to the staging area. Shuffle the encounter deck. Attach each hero in the staging area to a different Orc enemy in the staging area. Each hero attached to an enemy is guarded by that enemy. Guarded heroes are under no player’s control, immune to player card effects, and their text boxes are considered to be blank.

Orcs have seized your friends and are now dragging them away as captives.
While an enemy is guarding a hero it gets +1 , +1 , +1 and is immune to player card effects.

Forced: When the enemy guarding a hero is defeated, that hero’s owner takes control of that hero and exhausts it.

This stage cannot be defeated while an enemy is guarding a hero.