Castle Black

Castle Black enters the battlefield tapped unless you control a legendary creature.
{t}: {w}.
{1}{w},{t}: Draw a card. Activate only if you attacked
with two or more creatures this turn.
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"Castle Black had no defenses, but for the Wall
itself. It lacked even wooden palisades or earthen
dikes. The "castle" was nothing more than a cluster
of towers and keeps, two-thirds of them falling into
ruin." -Jon Snow.