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Glarb, Calamity's Augur

Legendary Creature — Frog Wizard Noble

Deathtouch
You may look at the top card of your library any time.
You may play lands and cast spells with mana value 4 or greater from the top of your library.
{T}: Surveil 2.

CMC
3
Mana cost
{B}{G}{U}
Color identity
BGU
Rarity
mythic
Set
Bloomburrow Promos
Price
—
EDHREC rank
#3635
Buy on TCGplayer
Glarb, Calamity's Augur card art
Glarb, Calamity's Augur lets you cast spells off the top of your library on each opponent's turn, turning any high-density instant suite into a card-advantage engine that runs around the clock. The cost is a four-mana 3/3 body that does nothing until opponents cooperate — but in the right shell, alongside payoffs like Valley Floodcaller and under a commander like Mimeoplasm, Revered One, the free casts pile up fast enough to justify the setup.

Best Commanders

Commanders with the highest synergy

01
Mimeoplasm, Revered One

Mimeoplasm, Revered One

22.7% of decks · synergy 0.19

Mimeoplasm, Revered One mills aggressively and rewards graveyard density, which means Glarb, Calamity's Augur's top-of-library casts get fueled by a library that's already been sculpted through self-mill — the two engines point in the same direction.

02
Teval, Arbiter of Virtue

Teval, Arbiter of Virtue

17.3% of decks · synergy 0.14

Teval, Arbiter of Virtue cares about casting spells and accruing value on each turn cycle, and Glarb, Calamity's Augur extends that activity into every opponent's turn, effectively doubling the number of triggers and spell casts Teval can leverage in a round.

03
Sin, Spira's Punishment

Sin, Spira's Punishment

17.0% of decks · synergy 0.13

Sin, Spira's Punishment wants as many spell casts per game as possible, and Glarb, Calamity's Augur delivers free casts on three additional turns per round — Sin's punishment triggers compound in a hurry.

Format Analysis

Where it lives, where it can’t

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

Commander is where Glarb, Calamity's Augur earns its slot — three opponents means three additional turns of free casts per round, which is exactly the multiplier that makes the ability absurd rather than marginal. In 1v1 formats like Legacy, Modern, Pioneer, and Vintage, the effect drops to one extra cast per turn cycle, competing against formats where four mana for a 3/3 with a conditional upside is simply too slow against established threats. Standard is technically legal, but the same problem applies: the payoff scales with the number of opponents, and Glarb wants a wide table, not a two-player race. Oathbreaker is the one alternative format where it can shine, again because multiplayer math inflates the value. Outside Commander, treat it as a casual card regardless of legality.

Key Combos

Combo lines featuring this card

Price Context

Current price

unknown tier

Current pricing data for Glarb, Calamity's Augur isn't available in this snapshot, so check Scryfall or TCGPlayer for the live number before buying. Given the card's clear Commander demand and multi-format legality, it's worth grabbing a copy if you're building a spell-slinger or trigger-accumulation deck — waiting rarely makes mythic-tier legends cheaper.

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Sources

Mentioned

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