House Greyjoy. Non-Loyal.
Event. Cost: 1.

Shadow (1).

Reaction: After you win a challenge in which you control an attacking Raider character, look at the losing opponent's hand. Then, choose 1 card (up to 2 cards instead if you played this event from shadows) from that hand and place it on top of its owner's deck.

Thomas Denmark
Sea of Shadow (Unreleased) #40.

Link: Decklists

Taking the Shield Islands