Card Codex

M:tG card similarity search

17 May 2024: Card library updated.

Heartstone

3 · Artifact

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

Similar cards

Color identity:
NameManaTypeText
Spell Blast XUInstant Counter target spell with mana value X. (For example, if that spell's mana cost is {3}{U}{U}, X is 5.)
Sanctum of Fruitful Harvest 2GLegendary Enchantment — Shrine At the beginning of your precombat main phase, add X mana of any one color, where X is the number of Shrines you control.
Power Plant Worker 5Artifact Creature — Assembly-Worker {3}: Power Plant Worker gets +2/+2 until end of turn. If you control creatures named Mine Worker and Tower Worker, put two +1/+1 counters on Power Plant Worker instead. Activate only once each turn. 4/4
Disembowel XBInstant Destroy target creature with mana value X.
Master of the Veil 2UUCreature — Human Wizard Morph {2}{U} (You may cast this card face down as a 2/2 creature for {3}. Turn it face up any time for its morph cost.) When Master of the Veil is turned face up, you may turn target creature with a morph ability face down. 2/3
Cunning Rhetoric 2BEnchantment Whenever an opponent attacks you and/or one or more planeswalkers you control, exile the top card of that player's library. You may play that card for as long as it remains exiled, and you may spend mana as though it were mana of any color to cast it.
Scaled Nurturer 1GCreature — Dragon Druid {T}: Add {G}. When you spend this mana to cast a Dragon creature spell, you gain 2 life. 0/2
Spell Burst XUInstant Buyback {3} (You may pay an additional {3} as you cast this spell. If you do, put this card into your hand as it resolves.) Counter target spell with mana value X.
Argentum Masticore 5Artifact Creature — Phyrexian Masticore First strike, protection from multicolored At the beginning of your upkeep, sacrifice Argentum Masticore unless you discard a card. When you discard a card this way, destroy target nonland permanent an opponent controls with mana value less than or equal to the mana value of the discarded card. 5/5
Acidic Dagger 4Artifact {4}, {T}: Whenever target creature deals combat damage to a non-Wall creature this turn, destroy that non-Wall creature. When the targeted creature leaves the battlefield this turn, sacrifice Acidic Dagger. Activate only before blockers are declared.
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