Core Synergy
Unesh, Criosphinx Sovereign
Command-zone cost reduction
Stacks directly with Eminence for a faster Sphinx curve.
- Role
- Stacked Sphinx Cost Reduction
- Set
- PHOU
Commander IntelligenceMarket trends
The Ur-Sphinx
Coverage4 out of 5Based on strategy, synergy, version, and market-intelligence coverage.Support cards18 cardsUpdatedSep 18, 2026
The Ur-Sphinx rewards casting expensive Sphinxes ahead of curve and attacking with as many of them as possible. Every attack mills the whole table and hands out a free spell to everyone, including you and your opponents.
- Color identity
- B / U / W
- Deck role
- Eminence command-zone cost reduction
- Game plan
- Use the command-zone Eminence discount before The Ur-Sphinx is even cast.
Market Summary
The Ur-Sphinx market checks
Supply pressureMarket status18Cards monitored8Active signals10Supply pressure6Higher confidenceSep 29, 2026Last market update
Supply pressure: Magister Sphinx is the first card to verify because Magister Sphinx: supply is getting thin over the 14d window (-69%).
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Market Watch
Magister Sphinx
Sphinx finisher
Magister Sphinx: supply is getting thin over the 14d window (-69%).
- NeoPrice
- $0.75
Recent Intelligence
The Ur-Sphinx Turns Wide Sphinx Attacks Into Free Spells For Every Player At The Table
Unesh, Criosphinx Sovereign
The Ur-Sphinx rewards casting expensive Sphinxes ahead of curve and attacking with as many of them as possible.
- Updated
- Sep 18, 2026
Commander Overview
How This Commander Plays
The Ur-Sphinx is a preview-state {6}{W}{U}{B} 10/10 Legendary Creature -- Sphinx Avatar. Eminence discounts other Sphinx spells by {1} from the command zone or battlefield, and whenever one or more Sphinxes it controls attack, each player mills that many cards and may cast one of their own milled cards without paying its mana cost.
Core Game Plan
- Use the command-zone Eminence discount before The Ur-Sphinx is even cast.
- Fix Esper (WUB) mana for a demanding three-color curve.
- Deploy Sphinxes ahead of curve using stacked cost reduction.
- Protect and ramp toward the nine-mana commander itself.
- Attack wide with Sphinxes to scale the mill trigger.
- Mill every player and cast up to one eligible free card per player.
- Repeat the attack step each combat to keep converting board width into free spells.
Key Mechanics
Eminence command-zone cost reductionAttack-triggered group millFree-cast from any player's own millSphinx-count scaling instead of combat-damage scalingCommand-zone cost reductionEsper mana fixing
Build Paths
Stack Eminence with Unesh and Urza's Incubator so expensive Sphinxes arrive well ahead of their printed cost.
The payoff is curve speed, not raw card advantage -- cheaper Sphinxes attack sooner and more often.Maximize the number of attacking Sphinxes each combat (including type-changed non-Sphinxes) to mill and free-cast as many cards as possible.
Unlike typical mill or theft decks, the payoff scales with attacker count declared, not with combat damage dealt or a single targeted opponent.Because every player -- including you -- mills, a deck can lean into the graveyard cards it mills into its own library, but this file does not claim.
This is recorded as context, not as an independently supported Strategy relationship.No exact Commander Spellbook record requiring The Ur-Sphinx was found as of this 2026-09-18 research pass. That negative result is preserved below rather than replaced with an invented combo.
Recent Intelligence
Referenced in Recent Intelligence
Recent reports that connected this page to player, deck, product, or market changes.
- Reports
- 1 report
- First referenced
- Latest mention
Inventory / seller depth
Unesh, Criosphinx Sovereign HOU #52 recovered from a September 17 low of four CardTrader-tracked copies to 50 on September 22. That is still about 81% below the 261 copies tracked on September 8, while fresh Ur-Sphinx deck techs keep Sphinx brewing active.
This commander was named in the trend.
Core Mechanics
What the deck is built to do
Attack triggers
Commander Market Impact
Market checks tied to this commander
See which Commander-related cards are showing meaningful price, supply, liquidity, or marketplace changes.
18cards monitored8active signals10supply checks
Supply is getting thinCONMagister SphinxWhy players care: Sphinx finisherMarket read: Magister Sphinx: supply is getting thin over the 14d window (-69%).NeoPrice$0.75InventoryNot trackedPrice confidenceModerate Confidence
Supply is getting thinMKCSphinx of the Second SunWhy players care: Extra beginning-phase SphinxMarket read: Sphinx of the Second Sun: supply is getting thin over the 14d window (-64%).NeoPrice$3.24Inventory42 copiesPrice confidenceModerate Confidence
Growing InventorySOCArcane SignetWhy players care: Commander-identity rampMarket read: Arcane Signet: growing inventory over the 14d window (+350%).NeoPrice$1.21Inventory1,110 copiesPrice confidenceModerate Confidence
Growing InventoryEOCCommand TowerWhy players care: Commander-identity landMarket read: Command Tower: growing inventory over the 14d window (+310%).NeoPrice$0.48Inventory785 copiesPrice confidenceModerate ConfidenceCards To Watch
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