Core Set#6 (x1)
(9) 1 2 2 4

While Thalin is committed to a quest, deal 1 damage to each enemy as it is revealed by the encounter deck.

There hammer on the anvil smote,
There chisel clove, and graver wrote;
There forged was blade, and bound was hilt;
The delver mined, the mason built.
–The Fellowship of the Ring

Illus. Jen Zee Errata
Direct Damage Encounter Control

The ability resolves before any keyword (including Doomed and Surge) or When Revealed effects on the enemy which are never triggered if the ability destroys the enemy (official FAQ)