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Clock of Omens

Artifact

Tap two untapped artifacts you control: Untap target artifact.

CMC
4
Mana cost
{4}
Color identity
C
Rarity
uncommon
Set
Fifth Dawn
Price
$6.46
EDHREC rank
#1769
Buy on TCGplayer
Clock of Omens card art
Clock of Omens is an untap engine that turns any two artifacts into a third activation — and in Magda, Brazen Outlaw decks specifically, that means free Treasure triggers that compound into dragons or tutored artifacts before opponents can respond. Four mana is a real cost, but the payoff is a repeatable combo axis that doesn't require your commander to survive combat.

Best Commanders

Commanders with the highest synergy

01
Magda, Brazen Outlaw

Magda, Brazen Outlaw

69.5% of decks · synergy 0.65

Clock of Omens is in nearly 70% of Magda, Brazen Outlaw decks because it closes the loop: tap two Dwarves to untap Magda, retap her with the Treasures she just made, and suddenly five Treasures appear in a single turn without any additional mana investment.

02
Jan Jansen, Chaos Crafter

Jan Jansen, Chaos Crafter

58.2% of decks · synergy 0.56

Jan Jansen, Chaos Crafter generates artifact tokens as a core function, and Clock of Omens converts those tokens into untap activations — letting Jansen fire multiple times per turn and snowball a board state that would otherwise be gated by summoning sickness.

03
Alibou, Ancient Witness

Alibou, Ancient Witness

42.0% of decks · synergy 0.41

Alibou, Ancient Witness wants artifacts tapping and untapping as often as possible for damage triggers, and Clock of Omens provides a cheap, repeatable way to untap key artifacts mid-combat and stack additional Alibou pings on a single attack step.

04
Asmoranomardicadaistinaculdacar

Asmoranomardicadaistinaculdacar

40.3% of decks · synergy 0.39

Asmoranomardicadaistinaculdacar runs a dense artifact package to fuel Food and sacrifice engines, and Clock of Omens slots in as a free action sink — turning excess artifact tokens into untaps that reset mana rocks or sacrifice outlets the same turn they come down.

05
Kilo, Apogee Mind

Kilo, Apogee Mind

39.6% of decks · synergy 0.37

Kilo, Apogee Mind rewards repeated artifact activations and tapping permanents, making Clock of Omens a natural fit that both fuels Kilo's triggers and untaps whatever artifact just generated value, effectively doubling the work each piece does per turn.

Format Analysis

Where it lives, where it can’t

FormatVerdict
commander legal
legacy legal
modern legal
pioneer not legal
standard not legal
vintage legal
pauper not legal
oathbreaker legal

Clock of Omens is a Commander card in practice — the singleton artifact-heavy environments where it shines simply don't exist at competitive scale in Legacy or Vintage, where four mana for a non-threatening artifact draws no interest. In Legacy and Vintage it's technically legal but sees no play; the formats move too fast and the effect too narrow to justify the slot. Commander is where Clock of Omens earns its reputation: artifact-centric commanders treat it as a combo enabler rather than a utility piece, and the multiplayer pace gives it time to generate the value that justifies its cost. Oathbreaker could support it in the right artifact shell, but the format's faster clock means you need a commander that can immediately leverage the untap axis.

Key Combos

Combo lines featuring this card

8,628 decks
Magda, Brazen OutlawClock of OmensRoaming Throne

Magda, Brazen OutlawClock of OmensRoaming Throne

Infinite colored mana; Infinite Treasure tokens; Infinite mana artifacts you control can produce; Infinite untap of artifacts you control; Put all artifact cards and a subset of creature cards from your library onto the battleifeld

View on Commander Spellbook ↗

Budget Alternatives

Cheaper options that do most of the same work

There's no true budget replacement for Clock of Omens because its specific tap-two-artifacts-to-untap-one text is functionally unique — cards like Unwinding Clock untap artifacts for free but only on opponents' turns, which breaks the same combo lines. If the goal is redundancy rather than an exact substitute, Voltaic Key untaps a single artifact for one mana and costs under a dollar, though it requires mana investment each time and lacks the combo density Clock of Omens provides in engines that need multiple untaps per turn.

Price Context

Current price

$6.46 mid tier

At $6.46, Clock of Omens sits in the mid tier — expensive enough to feel like a deliberate inclusion, cheap enough that it belongs in any artifact deck that can use it. Given its near-70% inclusion rate in Magda, Brazen Outlaw alone and consistent demand across multiple archetypes, this is a price that reflects real utility rather than speculation.

Explore

Sources

Mentioned

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Updated . Data from Scryfall, EDHREC, and Commander Spellbook.