The River Running
The Siege of Erebor #21 (x3)
Location
3 (3)
River.  

When Revealed: Deal 1 damage to The Riverlands. Deal it 1 additional damage for each other copy of The River Running in The Riverlands’ staging area.

Travel: Discard 1 random card from the hand of each player at this stage.

Shadow: Deal 1 damage to the eastmost main quest.