Winterheart Cathedral

Winterheart Cathedralcomes into play tapped.
{t}: Add {s}.
All lands you control gain the Snow type.
{2}: Planeshift (Red King's Tor): (Exchange this
card with a card you own with the same Planeshift
from outside the game or Exile.)
"Once faithful gathered there in the cold, but in time;
the cold came to dominate all other conscerns."