Lots or None at All
The Hobbit: Over Hill and Under Hill#51 (x3/x1)
When Revealed: If there is a Troll enemy in the staging area, Sack 1. If there are no Troll enemies in the staging area, this card gains Doomed 2.

Shadow: If the attacking enemy is a Troll , Sack 1. (The first player may spend 1 resource to cancel this effect.)