Play after shadow cards have been dealt, before any attacks have resolved.
Combat Action: Each player may choose and discard 1 facedown shadow card from an enemy with which he is engaged.
"Dawn take you all, and be stone to you!" –Gandalf, The Hobbit
"Dawn take you all, and be stone to you!" said a voice that sounded like William's but it wasn't. For just at that moment the light came over the hill, and there was a mighty twitter in the branches. William never spoke for he stood turned to stone as he stooped; and Bert and Tom were stuck like rocks as they looked at him. –The Hobbit
When Revealed: Remove all Troll enemies and Sack cards from the game. If Troll Cave is in the victory display, the players have discovered the treasure cards Sting, Glamdring, and Orcrist.
The players have won the game.