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Umbral Mantle

Artifact — Equipment

Equipped creature has "{3}, {Q}: This creature gets +2/+2 until end of turn." ({Q} is the untap symbol.)
Equip {0}

CMC
3
Mana cost
{3}
Color identity
C
Rarity
uncommon
Set
Shadowmoor
Price
$11.29
EDHREC rank
#2375
Buy on TCGplayer
Umbral Mantle card art
Umbral Mantle turns any creature that taps for more mana than the equip cost into an infinite combo — attach it to Priest of Titania with enough Elves in play and you have unbounded mana and an arbitrarily large creature in the same package. Redshift, Rocketeer Chief decks run it at over 60% inclusion for exactly that reason: the equip cost of three is irrelevant when your commander generates surplus mana on tap.

Best Commanders

Commanders with the highest synergy

01
Redshift, Rocketeer Chief

Redshift, Rocketeer Chief

61.7% of decks · synergy 0.60

Redshift, Rocketeer Chief taps for mana equal to the number of artifacts you control, so Umbral Mantle converts a modest artifact count into infinite mana and infinite power on the same turn.

02
Yurlok of Scorch Thrash

Yurlok of Scorch Thrash

58.2% of decks · synergy 0.55

Yurlok of Scorch Thrash forces all players to add mana they can't spend, and Umbral Mantle lets Yurlok itself untap repeatedly to stack that trigger, accelerating the damage clock to a lethal number of activations in a single turn.

03
Marwyn, the Nurturer

Marwyn, the Nurturer

48.6% of decks · synergy 0.44

Marwyn, the Nurturer gets +1/+1 counters every time another Elf enters, so in a full Elf deck she taps for enough mana to immediately rebuy Umbral Mantle's equip cost and then some — one loop produces infinite green mana and a lethal-sized Marwyn.

04
Selvala, Heart of the Wilds

Selvala, Heart of the Wilds

48.2% of decks · synergy 0.43

Selvala, Heart of the Wilds taps for mana equal to the greatest power among creatures you control, and equipping Umbral Mantle pumps her power each loop — she generates more mana per activation than the last, reaching infinite mana in just a few iterations.

05
Selvala, Explorer Returned

Selvala, Explorer Returned

42.3% of decks · synergy 0.41

Selvala, Explorer Returned taps for at least one green mana per activation, and in a populated board that number climbs high enough for Umbral Mantle to pay for itself and loop indefinitely, drawing your entire deck as a bonus.

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

Commander is where Umbral Mantle lives — the format's abundance of tap-for-multiple-mana creatures means the equip cost of three pays for itself on the first activation in dozens of shells. In Legacy and Vintage it's legal but essentially unplayed; faster, more consistent combo infrastructure makes a three-mana artifact equip feel glacial in those formats. Oathbreaker is a legitimate home for the same reasons as Commander, especially since planeswalkers that generate creatures or mana can enable the same untap loops. Pioneer, Standard, and Pauper don't have access to Umbral Mantle, so the conversation begins and ends with the singleton formats.

Key Combos

Combo lines featuring this card

Budget Alternatives

Cheaper options that do most of the same work

There is no direct budget replacement for Umbral Mantle — the combination of a free untap trigger and a pump stapled to the same card is unique. Sword of the Paruns does the same job for creatures that tap for multiple mana, costs roughly the same, but requires spending that mana immediately rather than floating it, which matters for multi-step loops. If the goal is simply untapping a mana creature repeatedly, Instill Energy and Freed from the Real each cost under a dollar and enable the same infinite lines, though they lack the power pump that makes Umbral Mantle independently threatening.

Price Context

Current price

$11.29 mid tier

At $11.29, Umbral Mantle sits in the mid tier — meaningful enough to feel in a budget build, but not the kind of card you agonize over for a focused combo deck. It's a staple in any shell that can break parity on the equip cost, so demand stays steady and the price is unlikely to crater.

Explore

Sources

Mentioned

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