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Rules guide · Artifact

HeartstoneHow it works & interactions with other cards

By the ManaCount desk· 3 min read· Stronghold· March 2, 1998
Carte Magic Heartstone

Heartstone 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

Activated abilities of creatures cost {1} less to activate. This effect can't reduce the mana in that cost to less than one mana.

How it works : Heartstone

Original English text — Wizards of the Coast / Scryfall

  1. #1· Wizards of the Coast

    Activated abilities contain a colon. They’re generally written “[Cost]: [Effect].” Some keywords are activated abilities and will have colons in their reminder text.

    No other card is named in this ruling.

  2. #2· Wizards of the Coast

    Can’t reduce Snow mana costs.

    No other card is named in this ruling.

  3. #3· Wizards of the Coast

    The cost reduction can be applied to additional costs.

    No other card is named in this ruling.

  4. #4· Wizards of the Coast

    It will not add a {1} to abilities with no generic mana in their activation cost.

    No other card is named in this ruling.

  5. #5· Wizards of the Coast

    It will never reduce any colored mana portion of an activation cost.

    No other card is named in this ruling.

02

Popular combos

Real combos played by the community, sorted by popularity.

Sliver Queen
+Cloudshredder Sliver
+Gemhide Sliver
+Heartstone
#1

Sliver Queen + Cloudshredder Sliver + Gemhide Sliver + Heartstone

Infinite creature tokensInfinite creature ETB
  1. 1All slivers have haste.
  2. 2Tap a Sliver to generate {1}.
  3. 3Use that mana to create a Sliver with Sliver Queen's ability.
  4. 4Use the newly created Sliver to repeat the cycle.
Sliver Queen
+Cloudshredder Sliver
+Manaweft Sliver
+Heartstone
#2

Sliver Queen + Cloudshredder Sliver + Manaweft Sliver + Heartstone

Infinite creature tokensInfinite creature ETB
  1. 1All slivers have haste.
  2. 2Tap a Sliver to generate {1}.
  3. 3Use that mana to create a Sliver with Sliver Queen's ability.
  4. 4Use the newly created Sliver to repeat the cycle.
Voltaic Construct
+Heartstone
+Palladium Myr
#3

Voltaic Construct + Heartstone + Palladium Myr

Infinite untap of artifact creatures you control
  1. 1Activate Palladium Myr by tapping it, adding {C}{C}.
  2. 2Activate Voltaic Construct by paying {1}, untapping Palladium Myr.
  3. 3Repeat.
Sliver Queen
+Ashnod's Altar
+Heartstone
#4

Sliver Queen + Ashnod's Altar + Heartstone

Infinite colorless manaInfinite creature tokensInfinite death triggersInfinite creature ETB
  1. 1Activate Sliver Queen by paying {1}, creating a 1/1 Sliver creature token.
  2. 2Activate Ashnod's Altar by sacrificing the Sliver token, adding {C}{C}.
  3. 3Repeat.
Sliver Queen
+Blur Sliver
+Manaweft Sliver
+Heartstone
#5

Sliver Queen + Blur Sliver + Manaweft Sliver + Heartstone

Infinite creature tokensInfinite creature ETB
  1. 1All slivers have haste.
  2. 2Tap a Sliver to generate {1}.
  3. 3Use that mana to create a Sliver with Sliver Queen's ability.
  4. 4Use the newly created Sliver to repeat the cycle.
Sliver Queen
+Blur Sliver
+Gemhide Sliver
+Heartstone
#6

Sliver Queen + Blur Sliver + Gemhide Sliver + Heartstone

Infinite creature tokensInfinite creature ETB
  1. 1All slivers have haste.
  2. 2Tap a Sliver to generate {1}.
  3. 3Use that mana to create a Sliver with Sliver Queen's ability.
  4. 4Use the newly created Sliver to repeat the cycle.
Basalt Monolith
+Heartstone
+Karn, the Great Creator
#7

Basalt Monolith + Heartstone + Karn, the Great Creator

Infinite colorless mana
  1. 1Activate Karn's first loyalty ability, causing Basalt Monolith to become an artifact creature until end of turn.
  2. 2Activate Basalt Monolith's first ability by tapping it, adding {C}{C}{C}.
  3. 3Activate Basalt's Monolith's last ability by paying {2}, untapping it.
  4. 4Repeat.
Basalt Monolith
+Myr Welder
+Heartstone
#8

Basalt Monolith + Myr Welder + Heartstone

Infinite colorless mana
  1. 1Activate Myr Welder using Basalt Monolith's first ability by tapping it, adding {C}{C}{C}.
  2. 2Activate Myr Welder using Basalt Monolith's second ability by paying {2}, untapping it.
  3. 3Repeat.
03

Legal formats

legacyvintagecommanderoathbreakerduelpremodernpredhtlr
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Meta decks with Heartstone

No archived Top 8 deck with this card yet.

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Official source