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Rules guide · Land

KarooHow it works & interactions with other cards

By the ManaCount desk· 4 min read· Commander 2014· November 7, 2014
Carte Magic Karoo

Karoo 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

This land enters tapped. When this land enters, sacrifice it unless you return an untapped Plains you control to its owner's hand. {T}: Add {C}{W}.

How it works : Karoo

Original English text — Wizards of the Coast / Scryfall

  1. #1· Wizards of the Coast

    This has a triggered ability when it enters, not a replacement effect, as previously worded.

    No other card is named in this ruling.

02

Popular combos

Real combos played by the community, sorted by popularity.

Retreat to Emeria
+Haru, Hidden Talent
+Karoo
#1

Retreat to Emeria + Haru, Hidden Talent + Karoo

Infinite creature ETBInfinite lifegain triggersInfinite lifegainInfinite creature tokens
  1. 1Play Karoo.
  2. 2When Karoo enters, it and Retreat to Emeria trigger.
  3. 3Resolve the Retreat to Emeria trigger, creating a 1/1 Kor Ally creature token.
  4. 4When the Kor Ally enters, Haru triggers, earthbending Karoo.
  5. 5Resolve the Karoo trigger from step 2, causing you to sacrifice it
  6. 6Haru triggers, returning Karoo from your graveyard to the battlefield.
  7. 7Repeat from step 2.
The Enigma Jewel // Locus of Enlightenment
+Deserted Temple
+Karoo
#2

The Enigma Jewel // Locus of Enlightenment + Deserted Temple + Karoo

Infinite mana lands you control can produceInfinite colorless manaInfinite white manaInfinite untap of lands you control
  1. 1Activate Karoo by tapping it, adding {1}{W}
  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 Karoo.
  4. 4Resolve both Deserted Temple abilities, untapping it and Karoo.
  5. 5Repeat.
Frantic Search
+Kitsa, Otterball Elite
+Minamo, School at Water's Edge
+Karoo
#3

Frantic Search + Kitsa, Otterball Elite + Minamo, School at Water's Edge + Karoo

Infinite self-discard triggersInfinite draw triggersInfinite lootingNear-infinite magecraft triggers
  1. 1Activate Karoo and another land by tapping them, adding at least {2}{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, Karoo and another land.
  6. 6Activate Karoo and another land by tapping them, adding at least {2}{U}.
  7. 7Activate Minamo's second ability by paying {U} and tapping it, untapping Kitsa.
  8. 8Repeat from step 4.
Staff of Domination
+Nyxbloom Ancient
+Karoo
+Voyaging Satyr
#4

Staff of Domination + Nyxbloom Ancient + Karoo + Voyaging Satyr

Infinite card drawInfinite colorless manaInfinite draw triggersInfinite lifegain
  1. 1Activate Karoo by tapping it, adding {C}{C}{C}{W}{W}{W} due to Nyxbloom Ancient
  2. 2Activate Voyaging Satyr by tapping it, untapping Karoo
  3. 3Activate Staff of Domination's third ability by paying {3} and tapping it, untapping Voyaging Satyr.
  4. 4Activate Staff of Domination's first ability by paying {1}, untapping it.
  5. 5Repeat.
Staff of Domination
+Nyxbloom Ancient
+Karoo
+Kelpie Guide
#5

Staff of Domination + Nyxbloom Ancient + Karoo + Kelpie Guide

Infinite card drawInfinite colorless manaInfinite draw triggersInfinite lifegain
  1. 1Activate Karoo by tapping it, adding {C}{C}{C}{W}{W}{W} due to Nyxbloom Ancient
  2. 2Activate Kelpie Guide by tapping it, untapping Karoo
  3. 3Activate Staff of Domination's third ability by paying {3} and tapping it, untapping Kelpie Guide.
  4. 4Activate Staff of Domination's first ability by paying {1}, untapping it.
  5. 5Repeat.
Staff of Domination
+Nyxbloom Ancient
+Karoo
+Forensic Researcher
#6

Staff of Domination + Nyxbloom Ancient + Karoo + Forensic Researcher

Infinite card drawInfinite colorless manaInfinite draw triggersInfinite lifegain
  1. 1Activate Karoo by tapping it, adding {C}{C}{C}{W}{W}{W} due to Nyxbloom Ancient
  2. 2Activate Forensic Researcher by tapping it, untapping Karoo
  3. 3Activate Staff of Domination's third ability by paying {3} and tapping it, untapping Forensic Researcher.
  4. 4Activate Staff of Domination's first ability by paying {1}, untapping it.
  5. 5Repeat.
Ashaya, Soul of the Wild
+Stone-Seeder Hierophant
+Karoo
+Kor Skyfisher
#7

Ashaya, Soul of the Wild + Stone-Seeder Hierophant + Karoo + Kor Skyfisher

Infinite creature LTBInfinite creature ETBInfinite storm countInfinite landfall triggers
  1. 1Activate Karoo by tapping it, adding {C}{W}.
  2. 2Cast Kor Skyfisher by paying its mana cost.
  3. 3When Kor Skyfisher enters as a land due to Ashaya, it and Stone-Seeder Hierophant trigger.
  4. 4Resolve the Kor Skyfisher trigger, returning it from your graveyard to the battlefield.
  5. 5Resolve the Stone-Seeder Hierophant trigger, untapping it.
  6. 6Activate Stone-Seeder Hierophant by tapping it, untapping Karoo.
  7. 7Repeat.
Staff of Domination
+Nyxbloom Ancient
+Blossom Dryad
+Karoo
#8

Staff of Domination + Nyxbloom Ancient + Blossom Dryad + Karoo

Infinite card drawInfinite colorless manaInfinite draw triggersInfinite lifegain
  1. 1Activate Karoo by tapping it, adding {C}{C}{C}{W}{W}{W} due to Nyxbloom Ancient
  2. 2Activate Blossom Dryad by tapping it, untapping Karoo
  3. 3Activate Staff of Domination's third ability by paying {3} and tapping it, untapping Blossom Dryad.
  4. 4Activate Staff of Domination's first ability by paying {1}, untapping it.
  5. 5Repeat.
03

Legal formats

legacyvintagecommanderoathbreakerduelpremodernpredhtlr
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Meta decks with Karoo

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