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
Mirrorshell Crab 5UUArtifact Creature — Crab Ward {3} (Whenever this creature becomes the target of a spell or ability an opponent controls, counter it unless that player pays {3}.) Channel — {2}{U}, Discard Mirrorshell Crab: Counter target spell or ability unless its controller pays {3}. 5/7
Swift Warkite 4BRCreature — Dragon Flying When Swift Warkite enters the battlefield, you may put a creature card with mana value 3 or less from your hand or graveyard onto the battlefield. That creature gains haste. Return it to your hand at the beginning of the next end step. 4/4
Mirrored Depths Plane — Karsus Whenever a player casts a spell, that player flips a coin. If the player loses the flip, counter that spell. Whenever chaos ensues, target player reveals the top card of their library. If it's a nonland card, you may cast it without paying its mana cost.
Clockwork Beast 6Artifact Creature — Beast Clockwork Beast enters the battlefield with seven +1/+0 counters on it. At end of combat, if Clockwork Beast attacked or blocked this combat, remove a +1/+0 counter from it. {X}, {T}: Put up to X +1/+0 counters on Clockwork Beast. This ability can't cause the total number of +1/+0 counters on Clockwork Beast to be greater than seven. Activate only during your upkeep. 0/4
In Too Deep UUEnchantment — Aura Split second (As long as this spell is on the stack, players can't cast spells or activate abilities that aren't mana abilities.) Enchant creature, planeswalker, or Clue Enchanted permanent is a colorless Clue artifact with "{2}, Sacrifice this artifact: Draw a card" and loses all other abilities. (It's no longer a creature or planeswalker.)
Mourner's Surprise 1BSorcery Return up to one target creature card from your graveyard to your hand. Create a 1/1 red Mercenary creature token with "{T}: Target creature you control gets +1/+0 until end of turn. Activate only as a sorcery."
Mox Diamond 0Artifact If Mox Diamond would enter the battlefield, you may discard a land card instead. If you do, put Mox Diamond onto the battlefield. If you don't, put it into its owner's graveyard. {T}: Add one mana of any color.
Gryff's Boon WEnchantment — Aura Enchant creature Enchanted creature gets +1/+0 and has flying. {3}{W}: Return Gryff's Boon from your graveyard to the battlefield attached to target creature. Activate only as a sorcery.
Endemic Plague 3BSorcery As an additional cost to cast this spell, sacrifice a creature. Destroy all creatures that share a creature type with the sacrificed creature. They can't be regenerated.
Wolfbitten Captive GCreature — Human Werewolf {1}{G}: Wolfbitten Captive gets +2/+2 until end of turn. Activate only once each turn. At the beginning of each upkeep, if no spells were cast last turn, transform Wolfbitten Captive. 1/1
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