The Land of Always Winter

{t}:Add {s} to your mana pool.
Land of the Others—{s}{s}{s}{s}{t}:Target creature
you control loses its other types and becomes a
White Walker with "zombies you control get +1/+1."
"And he looked past the Wall . . . to the curtain of
light at the end of the world, and then beyond that
curtain. He looked deep into the heart of winter, and
then he cried out, afraid, and the heat of his tears
burned on his cheek."