House Lannister. Loyal.
Event. Cost: 2.

Challenges Action: Choose a character with printed cost 2 or lower controlled by each player. Return each of those characters to its owner's hand.

Reaction: After a character is discarded from an opponent's hand or deck, pay 1 gold to return Tywin's Stratagem from your discard pile to your hand.

Adam Duff
The Red Wedding #70.

Link: Decklists

Tywin's Stratagem