Diagnosis - August 2, 2026

Yawgmoth followed last week’s strong results with another excellent finish: PETRICHOR21 placed third at 7-2 in the August 2 Modern Challenge 64. The winning structure remains the classic no-Chord Cauldron/GSZ shell with 4 [[Yawgmoth, Thran Physician]], 3 [[Walking Ballista]], 4 [[Agatha’s Soul Cauldron]], 3 [[Green Sun’s Zenith]], 4 [[Malevolent Rumble]], 2-3 [[Dredger’s Insight]], and a maindeck [[Endurance]].

The archetype is currently listed at a 54% aggregate win rate by MTGDecks. The strongest evidence continues to favor the streamlined four-Yawgmoth build over the Chord or Birthing Ritual branches. The main alternative is NickBolas90’s lands package, which again produced both a League 5-0 and a Challenge result.

The broad Modern field remains led by Boros Energy, Goryo’s Vengeance, Izzet Affinity, Eldrazi, Eldrazi Tron, Ruby Storm, and Izzet Prowess. Yawgmoth’s most important preparation remains Izzet artifact decks, Prowess, Living End, spell-based combo, and blue-white control.

Recent successful Yawgmoth lists

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August 2

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August 1

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July 31

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July 28

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July 27

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Notes on the lists

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PETRICHOR21 is the best current benchmark. The list plays 4 [[Yawgmoth, Thran Physician]], 3 [[Walking Ballista]], 4 [[Agatha’s Soul Cauldron]], 3 [[Green Sun’s Zenith]], 4 [[Malevolent Rumble]], 2 [[Dredger’s Insight]], 1 [[Endurance]], 1 [[Haywire Mite]], 1 [[Ignoble Hierarch]], 1 [[Grist, the Hunger Tide]], 1 [[Formidable Speaker]], and 1 [[Ouroboroid]]. The sideboard has 3 [[Fatal Push]], 3 [[Thoughtseize]], 2 [[Force of Vigor]], and one each of [[Ashiok, Dream Render]], Endurance, [[Fulminator Mage]], Grist, [[Soulless Jailer]], [[Vexing Bauble]], and [[Witherbloom Charm]].

PhyrexianSwarm reached 7-1 with almost the same classic structure. The main differences were 3 Dredger’s Insight and no Ignoble Hierarch. Its sideboard used [[Murderous Cut]] and Witherbloom Charm rather than a broad sweeper.

Jconn stayed on four Yawgmoth but used [[Virulent Emissary]] as the flexible creature slot. The new sideboard card is [[End of the Hunt]], a two-mana sorcery that makes the opponent exile their highest-mana-value creature or planeswalker. This gives the deck a clean answer to large threats without targeting the permanent directly.

NickBolas90 continues to validate the lands package. Both results use [[Mole Man, Moloid Master]], [[Icetill Explorer]], [[Shifting Woodland]], one maindeck [[Ghost Quarter]], and a second Ghost Quarter in the sideboard. The August 1 sideboard replaced [[Tourach, Dread Cantor]] with a second Vexing Bauble and retained [[Guerrilla Gorilla]].

Tournament databases continue to group some Samwise/Birthing Ritual decks under Yawgmoth because they contain a singleton Yawgmoth. Those results should be treated as a separate archetype rather than evidence for changes to classic Golgari Yawgmoth.

How Yawgmoth adapted this week

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The default configuration remains four Yawgmoth, three Ballista, no Chord, and maximum Cauldron/GSZ/Rumble density. PETRICHOR21’s 7-2 and PhyrexianSwarm’s 7-1 reinforce the same conclusion as Xerk’s 10-0 from the previous week.

[[Endurance]] is now firmly established as a maindeck card. The best stock lists use one main and frequently another in the sideboard. Goryo’s Vengeance is currently one of the largest decks in Modern, while Living End remains one of Yawgmoth’s most difficult matchups.

The sideboard is moving away from expensive board resets. None of the highlighted classic lists played [[Culling Ritual]]. They instead used more targeted tools: Fatal Push, Murderous Cut, End of the Hunt, Witherbloom Charm, Ashiok, and tutorable creature answers. This may reflect a field dominated by fast combo, large individual threats, and graveyard decks rather than only Energy boards.

Three [[Thoughtseize]] is increasingly the standard number. Every highlighted Challenge list played three. The combination of Goryo’s Vengeance, Ruby Storm, Living End, Neobrand, and control makes discard more valuable than another narrow permanent answer.

The main unresolved choice is between the stock manabase and the NickBolas90 lands package. The stock list has the better finish this week, while the lands package continues to produce enough results to remain a serious alternative.

Decks pressuring Yawgmoth

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Izzet Affinity / Izzet Metalcraft remains a priority matchup. It is approximately 6% of the broad metagame, represented five of the 32 decks in the July 31 Challenge, and Yawgmoth’s available matchup win rate is 45%. Keep two Force of Vigor and a tutorable artifact answer.

Izzet Prowess remains unfavorable at 42% in the available matchup data. Three Fatal Push is justified, and opening hands must affect the board before Yawgmoth itself comes online.

Living End is the statistically worst common matchup, with Yawgmoth at 27% in the available sample. One maindeck Endurance plus a second graveyard card after sideboard is the minimum reasonable configuration.

Azorius Control remains difficult at 22% in a small sample. The important cards are Thoughtseize, Grist, Ashiok, and resilient threats. Play conservatively around [[Wrath of the Skies]], which remains one of the most-played cards in recent Challenges.

Esper Blink is also unfavorable. Exile removal, Solitude, Wrath of the Skies, and repeated value engines punish overextension and make the second Grist or flexible discard effects more attractive.

Ruby Storm is close to even in recent data but remains strategically dangerous. Three Thoughtseize, one or two Vexing Bauble, and a functional clock are more reliable than loading the sideboard with narrow hate.

Boros Energy and Eldrazi Tron remain favorable in the available matchup data at 63% and 60%. They are common enough to practice, but they should not pull sideboard space away from Affinity, Living End, spell combo, and control.

Sideboard cards overperforming

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[[Thoughtseize]] is the clearest successful-list signal. PETRICHOR21, PhyrexianSwarm, Jconn, and both NickBolas90 lists played three copies. It was also among the five most-played cards in the August 2, August 1, July 31, and July 27 Challenges.

[[Fatal Push]] remains the primary anti-creature card. Successful lists are split between two and three copies, with three preferable when Prowess, Energy, Devoted Combo, and Broodscale are expected.

[[Force of Vigor]] remains a nearly automatic two-of. Affinity represented 15.6% of the July 31 Challenge, making it difficult to justify trimming artifact interaction.

[[Endurance]] is the best card moving between the main deck and sideboard. The successful stock lists play one main, and PETRICHOR21 also had a second copy in the sideboard.

[[Vexing Bauble]] remains broad and efficient. The stock lists used one copy, while Jconn and NickBolas90 used two. It was played in 38-41% of decks in several recent Challenges.

[[Witherbloom Charm]] continues to appear as a flexible final slot. It was in the PETRICHOR21, PhyrexianSwarm, and NickBolas90 sideboards.

[[End of the Hunt]] is the only genuinely new Yawgmoth sideboard card this week. Its exile clause and ability to answer a creature or planeswalker make it attractive against large threats, although one 5-2 result is not enough to make it stock.

The opposing cards to respect most are [[Wrath of the Skies]], [[Consign to Memory]], and [[Mystical Dispute]]. Wrath punishes overextension, while the two blue sideboard cards make resolving Yawgmoth or Green Sun’s Zenith less reliable after sideboard.

New or newly relevant cards in Yawgmoth lists

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[[End of the Hunt]] is the new card to test. It costs 1B and forces the opponent to exile a creature or planeswalker they control with the greatest mana value among those permanents. It is less flexible than Fatal Push against small creatures, but it answers large threats and avoids death triggers or graveyard recursion.

[[Mole Man, Moloid Master]], [[Icetill Explorer]], [[Shifting Woodland]], and [[Ghost Quarter]] are no longer new discoveries, but their repeated results make the package increasingly credible. The package trades one Yawgmoth, one Malevolent Rumble, and one Spymaster’s Vault for a stronger land-recursion plan.

[[Guerrilla Gorilla]] remains part of NickBolas90’s sideboard. It is a cheap green bullet against artifacts and enchantments, but the stock lists continue to prefer Haywire Mite, Force of Vigor, and Witherbloom Charm.