---
name: "The Millennium Calendar"
mana_cost: "{1}"
cmc: 1
type_line: "Legendary Artifact"
colors: []
color_identity: []
keywords: ["Double"]
set: "PLCI"
set_name: "The Lost Caverns of Ixalan Promos"
collector_number: "257p"
rarity: "mythic"
artist: "Zoltan Boros"
oracle_id: "1f250443-8d5e-46c9-920e-8e9373780e32"
canonical_url: "https://avascry.com/printing/the-millennium-calendar-plci"
legalities:
  commander: "legal"
  standard: "legal"
  modern: "legal"
  pioneer: "legal"
  legacy: "legal"
  vintage: "legal"
  pauper: "not_legal"
  penny: "legal"
---

# The Millennium Calendar
- **Mana Cost:** `{1}` (CMC: 1)
- **Type:** Legendary Artifact
- **Keywords:** Double

## Oracle Text
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.

## Top 4096-Dim Neural Synergies
1. [The Moment](/printing/the-moment-who.md) — Legendary Artifact
2. [Midnight Clock](/printing/midnight-clock-m3c.md) — Artifact
3. [Infinite Hourglass](/printing/infinite-hourglass-ice.md) — Artifact
4. [Grindclock](/printing/grindclock-m15.md) — Artifact
5. [Time Bomb](/printing/time-bomb-ice.md) — Artifact
6. [Armageddon Clock](/printing/armageddon-clock-sum.md) — Artifact

## Printing Details
- **Set:** The Lost Caverns of Ixalan Promos (PLCI) #257p
- **Rarity:** Mythic
- **Artist:** Zoltan Boros
- **Total Printings:** 15 across all historical editions

## Format Legalities
Commander: `legal` | Standard: `legal` | Modern: `legal` | Pioneer: `legal` | Legacy: `legal` | Vintage: `legal` | Pauper: `not_legal` | Penny: `legal`