name: Cover of Winter
originalText: Cumulative upkeep {Si} ({Si} 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.
  {Si}: Put an age counter on Cover of Winter.
printings: CSP
text: 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 source.)
  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 this enchantment.
  {S}: Put an age counter on this enchantment.
type: Snow Enchantment