Modern Cosmogoyf
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Variability
Cosmogoyf has climbed from ~0.9% to 1.4% of the Modern metagame over the last 90 days.
Meta share, last 90 days
Climbed from ~0.9% to 1.4% · trend line is 3-week smoothed
Approaches, last 90 days
Weekly breakdown of lists by automatically detected approach
Typical Modern Cosmogoyf maindeck cards
Maindeck adoption across 69 decklists in the last 90 days. Click a row to filter decklists.
| Card | Avg copies | % |
|---|---|---|
| Blackcleave Cliffs | 4.0 | 100% |
| Blooming Marsh | 4.0 | 100% |
| Cosmogoyf | 4.0 | 100% |
| Gemstone Caverns | 4.0 | 100% |
| Plunge into Darkness | 4.0 | 100% |
| Serum Powder | 4.0 | 100% |
| Spoils of the Vault | 4.0 | 100% |
| Summoner's Pact | 2.7 | 100% |
| Thud | 4.0 | 100% |
| Gemstone Mine | 4.0 | 97% |
| Copperline Gorge | 3.3 | 96% |
| Devourer of Destiny | 4.0 | 96% |
| Swamp | 1.0 | 86% |
| Pact of Negation | 3.5 | 67% |
| Blightstep Pathway | 1.5 | 65% |
| Inquisition of Kozilek | 4.0 | 58% |
| Cavern of Souls | 1.6 | 49% |
| Darkbore Pathway | 1.8 | 48% |
| Chancellor of the Tangle | 3.6 | 46% |
| Aloe Alchemist | 1.0 | 42% |
| Chancellor of the Dross | 2.3 | 35% |
| Callous Sell-Sword | 1.2 | 33% |
| Disciple of Freyalise | 1.3 | 32% |
| Forest | 1.0 | 25% |
| Boseiju, Who Endures | 1.8 | 23% |
| Ghor-Clan Rampager | 1.0 | 22% |
| Providence | 1.7 | 17% |
| Chancellor of the Annex | 4.0 | 13% |
| Fling | 1.0 | 9% |
| Faithless Looting | 3.0 | 6% |
| Claim/Fame | 3.3 | 4% |
| Cragcrown Pathway | 2.0 | 4% |
| Temur Battle Rage | 3.0 | 4% |
| Mana Confluence | 4.0 | 3% |
| Mosswort Bridge | 1.0 | 3% |
| Break Out | 3.0 | 1% |
| Duress | 1.0 | 1% |
| Ghalta and Mavren | 1.0 | 1% |
| Leyline of the Guildpact | 4.0 | 1% |
| Scion of Draco | 4.0 | 1% |
Typical Modern Cosmogoyf sideboard
Built from sideboard adoption across 69 decklists in the last 90 days.
Full sideboard card play rate
Per-card sideboard adoption across 69 decklists in the last 90 days. Click a row to filter decklists.
| Card | Avg copies | % |
|---|---|---|
| Cavern of Souls | 1.5 | 84% |
| Veil of Summer | 3.5 | 64% |
| Leyline of Sanctity | 3.2 | 59% |
| Forest | 1.0 | 54% |
| Pact of Negation | 1.9 | 48% |
| Chancellor of the Tangle | 3.2 | 32% |
| Inquisition of Kozilek | 3.3 | 30% |
| Chancellor of the Annex | 3.3 | 29% |
| Boseiju, Who Endures | 1.1 | 25% |
| Temur Battle Rage | 2.7 | 23% |
| Duress | 1.5 | 20% |
| Aloe Alchemist | 1.0 | 19% |
| Fatal Push | 2.8 | 19% |
| Fling | 1.6 | 19% |
| Lightning Bolt | 2.4 | 16% |
| Chancellor of the Dross | 1.9 | 14% |
| Sorin, Imperious Bloodlord | 4.0 | 14% |
| Pyroclasm | 2.0 | 13% |
| Swamp | 1.1 | 12% |
| Leyline of the Void | 1.0 | 7% |
| Natural State | 2.0 | 7% |
| Leyline of the Guildpact | 4.0 | 6% |
| Scion of Draco | 4.0 | 6% |
| Fire Magic | 2.3 | 4% |
| Claim/Fame | 1.5 | 3% |
| Disruptor Flute | 1.0 | 3% |
| Ghor-Clan Rampager | 1.0 | 3% |
| Mosswort Bridge | 2.0 | 3% |
| Noxious Revival | 2.5 | 3% |
| Pick Your Poison | 3.0 | 3% |
| Thrun, the Last Troll | 1.0 | 3% |
| Vexing Bauble | 2.0 | 3% |
| Copperline Gorge | 1.0 | 1% |
| Culling Ritual | 2.0 | 1% |
| Death's Shadow | 2.0 | 1% |
| Kaheera, the Orphanguard | 1.0 | 1% |
| Meltdown | 1.0 | 1% |
| Specter's Shriek | 3.0 | 1% |
| Thoughtseize | 1.0 | 1% |
Cosmogoyf Modern FAQ
Is Cosmogoyf good in Modern right now?
Yes — and rising fast. Cosmogoyf is 1.4% of Modern decklists in the last two weeks (up 226% vs the prior window), with 1 Challenge win and 3 Top 8s. Best recent finish: 1st (9-1) at Modern Challenge 64 on Jul 24, 2026.
What are the key cards in Modern Cosmogoyf?
Nearly every list runs Cosmogoyf, Plunge into Darkness, Serum Powder, and Spoils of the Vault (99%+ of Modern Cosmogoyf decklists in the last 90 days). Most lists are Stock (9); variants add Chancellor of the Dross (20) and Chancellor of the Tangle (19).
What's a typical Modern Cosmogoyf sideboard?
The most common Modern Cosmogoyf sideboard cards over the last 90 days: Cavern of Souls (84% of lists), Veil of Summer (64% of lists), Leyline of Sanctity (59% of lists), and Forest (54% of lists).
Are there different builds of Modern Cosmogoyf?
Mostly one stock build — recent lists are highly standardized. Recent lists split into Chancellor of the Dross, Chancellor of the Tangle, and Stock approaches.
What does Uniqueness mean?
Uniqueness rates each list from band 1 (Stock) through band 10 (Unique). Higher means a list is more unusual vs recent peers of this strategy.
How many Modern Cosmogoyf decklists are there?
Decklist Data tracks 116 Modern Cosmogoyf decklists all-time (24 in the last 14 days) from Magic: The Gathering Online (MTGO) Challenges and Leagues. New results are indexed automatically — latest Cosmogoyf result Jul 27, 2026.