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Mox Diamond

Artifact

If this artifact would enter, you may discard a land card instead. If you do, put this artifact onto the battlefield. If you don't, put it into its owner's graveyard.
{T}: Add one mana of any color.

CMC
0
Mana cost
{0}
Color identity
C
Rarity
mythic
Set
Tempest Remastered
Price
—
EDHREC rank
#245
Buy on TCGplayer
Mox Diamond card art
Mox Diamond puts a free mana rock into play on turn one at the cost of a land drop — and in competitive Commander, that trade is almost always correct. The discard-a-land clause is real, but decks like Rograkh, Son of Rohgahh // Silas Renn, Seeker Adept and Noctis, Prince of Lucis are built to win before the missing land matters.

Best Commanders

Commanders with the highest synergy

01
Rograkh, Son of RohgahhSilas Renn, Seeker Adept

Rograkh, Son of Rohgahh // Silas Renn, Seeker Adept

84.6% of decks · synergy 0.78

Rograkh, Son of Rohgahh // Silas Renn, Seeker Adept runs an 84% inclusion rate on Mox Diamond because the deck wants zero-cost artifacts in play on turn one to enable its artifact-sacrifice lines, and Mox Diamond costs nothing while contributing colored mana toward Silas's equip costs.

02
Dargo, the ShipwreckerTymna the Weaver

Dargo, the Shipwrecker // Tymna the Weaver

81.9% of decks · synergy 0.78

Dargo, the Shipwrecker // Tymna the Weaver needs cheap artifacts to reduce Dargo's commander tax, and Mox Diamond enters at zero and immediately fuels the turn-one or turn-two Dargo that makes the deck threatening.

03
Thrasios, Triton HeroYoshimaru, Ever Faithful

Thrasios, Triton Hero // Yoshimaru, Ever Faithful

66.7% of decks · synergy 0.63

Thrasios, Triton Hero // Yoshimaru, Ever Faithful is a cEDH staple pairing that sinks every spare mana into Thrasios's activated ability, so Mox Diamond's free mana directly translates into extra library digs as early as turn one.

04
Tevesh Szat, Doom of FoolsThrasios, Triton Hero

Tevesh Szat, Doom of Fools // Thrasios, Triton Hero

65.9% of decks · synergy 0.61

Tevesh Szat, Doom of Fools // Thrasios, Triton Hero shares the same Thrasios mana-sink engine, and Mox Diamond's colorless-into-any-color flexibility supports both partners' color requirements without an additional land drop.

05
Malcolm, Keen-Eyed NavigatorVial Smasher the Fierce

Malcolm, Keen-Eyed Navigator // Vial Smasher the Fierce

64.2% of decks · synergy 0.57

Malcolm, Keen-Eyed Navigator // Vial Smasher the Fierce wants to cast its first spell before opponents can set up interaction, and Mox Diamond accelerates Vial Smasher's first trigger by letting the deck hit three mana a full turn ahead of schedule.

Format Analysis

Where it lives, where it can’t

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

In Commander, Mox Diamond is a pillar of cEDH — it's free acceleration that lets you hit two mana on turn one without spending a card in hand, which is the clearest definition of a tempo-positive rock. Legacy sees genuine play in Lands-adjacent shells and any deck that wants explosive early mana without the drawback of a tapped land. Vintage has Black Lotus and the Moxen, so Mox Diamond sits further down the pecking order but still sees fringe use in non-restricted builds. It's not legal in Modern, Pioneer, or Standard, and Pauper is out of the question on rarity alone.

Key Combos

Combo lines featuring this card

Price Context

Current price

unknown tier

Mox Diamond is one of the more expensive legal cards in Commander — pricing data is currently unavailable here, but it consistently trades in the $80–$120 range depending on condition and printing, so check current buylist and market prices on Scryfall or TCGPlayer before buying. If the price is a barrier, there is no true functional replacement for free mana, so the honest advice is to proxy it until you can acquire one.

Explore

Sources

Mentioned

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