Resources

Magic: The Gathering Comprehensive Rules Changes

Dissension to Coldsnap (Single Change View)

General changes

Old rule (Dissension) New rule (Coldsnap)

Snow-Covered

Snow-covered is a supertype. When a card refers to a "snow-covered land," it means a land with the snow-covered supertype. When a card refers to a "snow-covered Forest," it means a Forest with the snow-covered supertype, and so on. See rule 205.4e.