Whenever you untap one or more permanents during your untap step, put that many time counters on The Millennium Calendar.
{2}, {T}: Double the number of time counters on The Millennium Calendar.
When there are 1,000 or more time counters on The Millennium Calendar, sacrifice it and each opponent loses 1,000 life.
The Millennium Calendar has 4 listed printings; the most valuable is the Prerelease printing from PLCI at US$6.23 on TCGplayer's market price. Prices below are the cheapest in-stock listing in the United States.
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