Unmanned Ballista
The Fall of Nargothrond #326 (x2)
Location
3 (7)

Response: After Unmanned Ballista is explored as the active location, attach it to a hero controlled by the first player. While attached to a hero, Unmanned Ballista gains: "CombatAction: Exhaust Unmanned Ballista and attached hero to deal 2 damage to an enemy in play."