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Tekuthal, Inquiry DominusHow it works & interactions with other cards

By the ManaCount desk· 5 min read· Edge of Eternities Commander· August 1, 2025
Carte Magic Tekuthal, Inquiry Dominus

Tekuthal, Inquiry Dominus is one of those cards players keep asking about. Here is, in plain words, what its official text says, the rulings published by Wizards of the Coast, and the combos players actually run.

01

Official card text

Flying If you would proliferate, proliferate twice instead. {1}{U/P}{U/P}, Remove three counters from among other artifacts, creatures, and planeswalkers you control: Put an indestructible counter on Tekuthal. ({U/P} can be paid with either {U} or 2 life.)

How it works : Tekuthal, Inquiry Dominus

Original English text — Wizards of the Coast / Scryfall

  1. #1· Wizards of the Coast

    To proliferate, you can choose any permanent that has a counter, including ones controlled by opponents. You can choose any player who has a counter, including opponents. You can't choose cards in any zone other than the battlefield, even if they have counters on them.

    No other card is named in this ruling.

  2. #2· Wizards of the Coast

    You don't have to choose every permanent or player that has a counter, only the ones you want to add another counter to. Since "any number" includes zero, you don't have to choose any permanents at all, and you don't have to choose any players at all.

    No other card is named in this ruling.

  3. #3· Wizards of the Coast

    If a player or permanent has more than one kind of counter on it, and you choose for it to get additional counters, it must get one of each kind of counter it already has. You can't have it get just one kind of counter it already has and not the others.

    No other card is named in this ruling.

  4. #4· Wizards of the Coast

    An ability that triggers "Whenever you proliferate" triggers even if you chose no permanents or players while doing so.

    No other card is named in this ruling.

  5. #5· Wizards of the Coast

    Players can respond to a spell or ability whose effect includes proliferating. Once that spell or ability starts to resolve, however, and its controller chooses which permanents and players will get new counters, it's too late for anyone to respond.

    No other card is named in this ruling.

  6. #6· Wizards of the Coast

    If a permanent ever has both +1/+1 counters and -1/-1 counters on it at the same time, they're removed in pairs as a state-based action so that the permanent has only one of those kinds of counters on it.

    No other card is named in this ruling.

02

Popular combos

Real combos played by the community, sorted by popularity.

Tekuthal, Inquiry Dominus
+Magistrate's Scepter
+Contagion Engine
#1

Tekuthal, Inquiry Dominus + Magistrate's Scepter + Contagion Engine

Infinite turnsLock
  1. 1Activate Contagion Engine by paying {4} and tapping it, putting four charge counters on Magistrate's Scepter.
  2. 2Activate Magistrate's Scepter's second ability by tapping it and removing three charge counters from it, causing you to take an extra turn after this one.
  3. 3Repeat each turn.
Tekuthal, Inquiry Dominus
+Ichormoon Gauntlet
+Jace, Cunning Castaway
#2

Tekuthal, Inquiry Dominus + Ichormoon Gauntlet + Jace, Cunning Castaway

Infinite copies of a specific planeswalkerInfinite proliferateInfinite turns after one turn cycleLock
  1. 1Activate Jace's third loyalty ability by removing five loyalty counters from it, creating two token copies of it that aren't legendary.
  2. 2Activate a Jace token using the first ability from Ichormoon Gauntlet by putting zero loyalty counters on it, proliferating twice due to Tekuthal.
  3. 3Activate the second Jace token's third ability by removing five loyalty counters from it, creating two token copies of itself that aren't legendary.
  4. 4Repeat from step 2.
  5. 5Once you have infinite Jace tokens with infinite loyalty counters, starting on your next turn, you may activate any number of instances of the second ability granted by Ichormoon Gauntlet by removing loyalty counters from Jace tokens to take infinite turns.
Tekuthal, Inquiry Dominus
+Magistrate's Scepter
+Coretapper
+Contagion Clasp
#3

Tekuthal, Inquiry Dominus + Magistrate's Scepter + Coretapper + Contagion Clasp

Infinite turnsLock
  1. 1Activate Coretapper's first ability by tapping it, putting a charge counter on Magistrate's Scepter.
  2. 2Activate Contagion Clasp by paying {4} and tapping it, proliferating twice, putting two additional charge counters on Magistrate's Scepter.
  3. 3Activate Magistrate's Scepter's second ability by tapping it and removing three charge counters from it, taking an extra turn after this one.
  4. 4Repeat each turn.
Tekuthal, Inquiry Dominus
+Magistrate's Scepter
+Lithoform Engine
+Karn's Bastion
#4

Tekuthal, Inquiry Dominus + Magistrate's Scepter + Lithoform Engine + Karn's Bastion

Infinite turnsLock
  1. 1Activate Karn's Bastion's second ability by paying {4} and tapping it.
  2. 2Holding priority, activate Lithoform Engine's first ability by paying {2} and tapping it, copying Karn's Bastion's ability.
  3. 3Resolve both Karn's Bastion abilities, putting four charge counters on Magistrate's Scepter.
  4. 4Activate Magistrate's Scepter's second ability by tapping it and removing three charge counters from it, causing you to take an extra turn after this one.
  5. 5Move to your next turn.
  6. 6Activate Karn's Bastion's second ability by paying {4} and tapping it, putting two charge counters on Magistrate's Scepter.
  7. 7Repeat steps 4 and 5 one time.
  8. 8Repeat from step 1.
Tekuthal, Inquiry Dominus
+Viral Drake
+Cryptic Trilobite
+Crystalline Crawler
#5

Tekuthal, Inquiry Dominus + Viral Drake + Cryptic Trilobite + Crystalline Crawler

Infinite +1/+1 counters on most creatures you controlInfinite colored manaInfinite colorless mana that can only be spent to activate abilitiesInfinite proliferate
  1. 1Activate Viral Drake by paying {3}{U}, putting two +1/+1 counters on Cryptic Trilobite and Crystalline Crawler.
  2. 2Activate Crystalline Crawler's first ability by removing a +1/+1 counter from it, adding {U}.
  3. 3Activate Cryptic Trilobite's first ability twice by removing two +1/+1 counters from it, adding {C}{C}{C}{C} that can only be spent to activate abilities.
  4. 4Repeat.
Evolution Sage
+Life and Limb
+Sporoloth Ancient
+Tekuthal, Inquiry Dominus
#6

Evolution Sage + Life and Limb + Sporoloth Ancient + Tekuthal, Inquiry Dominus

Infinite creature tokensInfinite creature ETBInfinite landfall triggersInfinite proliferate
  1. 1Activate Sporoloth Ancient by removing two spore counters from it, creating a 1/1 Saproling creature token.
  2. 2When the Saproling enters the battlefield as a Forest land due to Life and Limb, Evolution Sage triggers, putting two spore counters on Sporoloth Ancient.
  3. 3Repeat.
Yawgmoth, Thran Physician
+Voidwing Hybrid
+Tekuthal, Inquiry Dominus
+Crystalline Crawler
#7

Yawgmoth, Thran Physician + Voidwing Hybrid + Tekuthal, Inquiry Dominus + Crystalline Crawler

Infinite proliferateInfinite self-discard triggers
  1. 1Activate Yawgmoth's second ability by paying {B}{B} and discarding Voidwing Hybrid, causing you to put two +1/+1 counters on Crystalline Crawler.
  2. 2Voidwing Hybrid triggers, returning itself from your graveyard to your hand.
  3. 3Activate Crystalline Crawler's first ability twice by removing two +1/+1 counters from it, adding {B}{B}.
  4. 4Repeat.
Agatha's Soul Cauldron
+Myojin of Towering Might
+Tekuthal, Inquiry Dominus
+Crystalline Crawler
#8

Agatha's Soul Cauldron + Myojin of Towering Might + Tekuthal, Inquiry Dominus + Crystalline Crawler

Infinite colored manaInfinite +1/+1 counters on creatures you control
  1. 1Activate Tekuthal using Myojin of Towering Might's ability by removing an indestructible counter from it, putting six +1/+1 counters on Crystalline Crawler, and two +1/+1 counters on any creature you control.
  2. 2Activate Crystalline Crawler's first ability three times by removing three +1/+1 counters from it, adding {3}.
  3. 3Activate Tekuthal by paying {3} and removing three +1/+1 counters from Crystalline Crawler, putting an indestructible counter on it.
  4. 4Repeat.
03

Legal formats

historictimelessgladiatorpioneermodernlegacyvintagepennycommanderoathbreakerbrawlcompetitivebrawlduel
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