The Millennium Calendar⁣ - The Lost Caverns of Ixalan: Extras⁣ (Mythic)⁣ [388]

The Millennium Calendar is a legendary artifact that accumulates time counters whenever you untap one or more permanents during your untap step. You can pay {2} and tap it to double the number of counters on the calendar. Once it reaches 1,000 or more counters, you must sacrifice it, causing each opponent to lose 1,000 life. This card fits well in Commander and casual formats, offering unique synergies for decks focused on untapping permanents and counter manipulation.