The Night's Watch. Leal.
Character. Coste: 5. FUE: 5.

Companion.

Reaction: After you marshal Northern Envoy, reveal the top 10 cards of an opponent's deck. Choose 1 non-unique character revealed this way and place it in its owner's discard pile. Shuffle that player's deck.

?
Sea of Shadow (Unreleased) #52.

Link: Decklists

Northern Envoy