Ice Age — Uncommon
Arcum's Weathervane rulings:
10/15/2006 : Adds the snow or removes the snow supertype to or from a land. Adding snow doesnt overwrite other supertypes.
10/15/2006 : Cant be used on a dual land to add the Snow Supertype even though it is a basic land subtype. You can use it on any land to remove the snow supertype.