Cumulative upkeep {S} (At the beginning of your upkeep, put an age counter on this permanent, then sacrifice it unless you pay its upkeep cost for each age counter on it. {S} can be paid with one mana from a snow permanent.) If a creature would deal combat damage to you and/or one or more creatures you control, prevent X of that damage, where X is the number of age counters on Cover of Winter. {S}: Put an age counter on Cover of Winter.
Near Mint - $600
Lightly Played - $400
Moderately Played - $400
Heavily Played - $300
Damaged - $300
Near Mint Spanish - $600
Lightly Played Spanish - $400
Moderately Played Spanish - $400
Heavily Played Spanish - $300
Damaged Spanish - $300
Foil Prices
Near Mint Foil - $3.800
Lightly Played Foil - $3.000
Moderately Played Foil - $2.700
Heavily Played Foil - $2.400
Damaged Foil - $2.000
Near Mint Foil Spanish - $3.800
Lightly Played Foil Spanish - $3.000
Moderately Played Foil Spanish - $2.700
Heavily Played Foil Spanish - $2.400
Damaged Foil Spanish - $2.000