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Rules guide · Legendary Artifact // Legendary Land

Matzalantli, the Great Door // The CoreHow it works & interactions with other cards

By the ManaCount desk· 5 min read· The Lost Caverns of Ixalan· November 17, 2023
Carte Magic Matzalantli, the Great Door // The Core

Matzalantli, the Great Door // The Core 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

{T}: Draw a card, then discard a card. {4}, {T}: Transform Matzalantli. Activate only if there are four or more permanent types among cards in your graveyard. (Artifact, battle, creature, enchantment, land, and planeswalker are permanent types.) (Transforms from Matzalantli.) Fathomless descent — {T}: Add X mana of any one color, where X is the number of permanent cards in your graveyard.

How it works : Matzalantli, the Great Door // The Core

Original English text — Wizards of the Coast / Scryfall

  1. #1· Wizards of the Coast

    Transforming Matzalantli doesn't cause it to leave the battlefield. It also doesn't cause it to become untapped.

    No other card is named in this ruling.

  2. #2· Wizards of the Coast

    The Core's activated ability is a mana ability. It doesn't use the stack and can't be responded to.

    No other card is named in this ruling.

  3. #3· Wizards of the Coast

    Cards with the ability word "fathomless descent" have abilities that care how many permanent cards are in your graveyard.

    No other card is named in this ruling.

  4. #4· Wizards of the Coast

    Some descend triggered abilities include intervening "if" clauses (i.e. "if you have [four or eight] permanent cards in your graveyard" in the middle of the ability). Each of these abilities checks your graveyard at the moment it would trigger to see if it does. If you don't have the required number of permanent cards in your graveyard at that time, the ability doesn't trigger at all. If it does trigger, it will check again as it tries to resolve. If you don't have the required number of permanent cards in your graveyard at that time, the ability won't resolve and none of its effects will happen.

    No other card is named in this ruling.

02

Popular combos

Real combos played by the community, sorted by popularity.

Kitsa, Otterball Elite
+Frantic Search
+Minamo, School at Water's Edge
+Matzalantli, the Great Door // The Core
#1

Kitsa, Otterball Elite + Frantic Search + Minamo, School at Water's Edge + Matzalantli, the Great Door // The Core

Infinite self-discard triggersInfinite draw triggersInfinite lootingNear-infinite mana lands you control can produce
  1. 1Activate The Core and up to one other land by tapping them, adding at least {3}{U}.
  2. 2Cast Frantic Search by paying {2}{U}.
  3. 3Kitsa's prowess ability triggers, giving it +1/+1 until end of turn.
  4. 4Holding priority, activate Kitsa's second ability by paying {2} and tapping it, copying Frantic Search.
  5. 5Resolve the copy of Frantic Search, causing you to loot twice and untap Minamo, The Core and up to one other land.
  6. 6Activate The Core and up to one other land by tapping them, adding at least {3}{U}.
  7. 7Activate Minamo's second ability by paying {U} and tapping it, untapping Kitsa.
  8. 8Repeat from step 4.
Rings of Brighthearth
+Deserted Temple
+Matzalantli, the Great Door // The Core
#2

Rings of Brighthearth + Deserted Temple + Matzalantli, the Great Door // The Core

Infinite colored manaInfinite mana lands you control can produceInfinite untap of lands you control
  1. 1Activate The Core by tapping it, adding at least four mana of any color.
  2. 2Activate Deserted Temple's second ability by paying {1} and tapping it, targeting The Core.
  3. 3Rings of Brighthearth triggers, causing you to pay {2} to copy Deserted Temple's ability, targeting Deserted Temple.
  4. 4Resolve both Deserted Temple abilities, untapping Deserted Temple and The Core
  5. 5Repeat
The Enigma Jewel // Locus of Enlightenment
+Deserted Temple
+Matzalantli, the Great Door // The Core
#3

The Enigma Jewel // Locus of Enlightenment + Deserted Temple + Matzalantli, the Great Door // The Core

Infinite mana lands you control can produceInfinite colored manaInfinite untap of lands you control
  1. 1Activate The Core by tapping it, adding at least two mana of any color.
  2. 2Activate Deserted Temple's second ability by paying {1} and tapping it, targeting itself.
  3. 3Locus of Enlightenment triggers, copying Deserted Temple's ability, targeting The Core.
  4. 4Resolve both Deserted Temple abilities, untapping it and The Core.
  5. 5Repeat.
Gleaming Splendor
+Mind Over Matter
+Matzalantli, the Great Door // The Core
#4

Gleaming Splendor + Mind Over Matter + Matzalantli, the Great Door // The Core

Infinite draw triggersInfinite lootingInfinite self-discard triggersNear-infinite card draw
  1. 1Activate Matzalantli, the Great Door // The Core by tapping it, adding at least {W}{W}{W}.
  2. 2Activate Gleaming Splendor by paying {2}{W}, causing you and an opponent to draw a card.
  3. 3Activate Mind Over Matter by discarding a card, untapping Matzalantli, the Great Door // The Core.
  4. 4Repeat.
Oboro Breezecaller
+Talon Gates of Madara
+Matzalantli, the Great Door // The Core
#5

Oboro Breezecaller + Talon Gates of Madara + Matzalantli, the Great Door // The Core

Infinite colored manaInfinite mana lands you control can produceInfinite landfall triggersPhase out any number of creatures any number of times
  1. 1Activate The Core by tapping it, adding at least five mana of any color.
  2. 2Activate Talon Gates of Madara's first ability by tapping it, adding {C}.
  3. 3Activate Oboro Breezecaller by paying {2} and returning Talon Gates of Madara from the battlefield to your hand, untapping The Core.
  4. 4Activate Talon Gates of Madara's third ability by paying {4}, putting it from your hand onto the battlefield.
  5. 5When Talon Gates of Madara enters the battlefield, it triggers, phasing out up to one target creature.
  6. 6Repeat.
Derevi, Empyrial Tactician
+Emiel the Blessed
+Matzalantli, the Great Door // The Core
#6

Derevi, Empyrial Tactician + Emiel the Blessed + Matzalantli, the Great Door // The Core

Infinite untap of permanents you controlInfinite creature LTBInfinite creature ETBInfinite colored mana
  1. 1Activate The Core by tapping it, adding at least three mana of any color.
  2. 2Activate Emiel by paying {3}, blinking Derevi.
  3. 3When Derevi enters the battlefield, it triggers, untapping The Core.
  4. 4Repeat.
Lilysplash Mentor
+Cloud of Faeries
+Matzalantli, the Great Door // The Core
#7

Lilysplash Mentor + Cloud of Faeries + Matzalantli, the Great Door // The Core

Infinite creature LTBInfinite creature ETBInfinite blinkingInfinite colored mana
  1. 1Activate The Core by tapping it, adding at least {G}{G}{G} or {U}{U}{U}.
  2. 2If desired, activate another mana producing land by tapping it, adding at least {1}.
  3. 3Activate Lilysplash Mentor by paying {1}{G}{U}, blinking Cloud of Faeries.
  4. 4When Cloud of Faeries enters the battlefield, it triggers, untapping The Core and up to one other mana-producing land.
  5. 5Repeat.
Toph, the First Metalbender
+Candelabra of Tawnos
+Matzalantli, the Great Door // The Core
#8

Toph, the First Metalbender + Candelabra of Tawnos + Matzalantli, the Great Door // The Core

Infinite colored manaInfinite mana lands you control can produceInfinite untap of nontoken artifacts you controlInfinite mana nontoken artifacts you control can produce
  1. 1Activate The Core by tapping it, adding at least {3}.
  2. 2Activate Candelabra of Tawnos by paying {2} and tapping it, untapping The Core and Candelabra of Tawnos as it is a land due to Toph.
  3. 3Repeat.
03

Legal formats

standardfuturehistorictimelessgladiatorpioneermodernlegacyvintagepennycommanderoathbreakerstandardbrawlbrawlcompetitivebrawldueltlr
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Meta decks with Matzalantli, the Great Door // The Core

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