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
Mind's Dilation 5UUEnchantment Whenever an opponent casts their first spell each turn, that player exiles the top card of their library. If it's a nonland card, you may cast it without paying its mana cost.
Lay Down Arms WSorcery Exile target creature with mana value less than or equal to the number of Plains you control. Its controller gains 3 life.
Gaea's Revenge 5GGCreature — Elemental This spell can't be countered. Haste Gaea's Revenge can't be the target of nongreen spells or abilities from nongreen sources. 8/5
Thunderclap Drake 1UCreature — Drake Flying Instant and sorcery spells you cast cost {1} less to cast. {2}{U}, Sacrifice Thunderclap Drake: When you next cast an instant or sorcery spell this turn, copy it for each time you've cast your commander from the command zone this game. You may choose new targets for the copies. 2/1
Cryptolith Rite 1GEnchantment Creatures you control have "{T}: Add one mana of any color."
Wilson, Subtle Bear 1GULegendary Creature — Bear Warrior Reach, trample Ward {2} Wilson, Subtle Bear can't be blocked. {1}{G}{U}, Exile Wilson from your graveyard: Target creature you control perpetually gains "This creature can't be blocked." Activate only as a sorcery. 3/3
I'm Rubber, You're Glue WWEnchantment When you speak in non-rhyming sentences, sacrifice I'm Rubber, You're Glue. Say "I'm rubber, you're glue. Everything bounces off me and sticks to you": Change the target of target spell or ability that targets only you.
Linebreaker Baloth 3GGCreature — Beast Enlist (As this creature attacks, you may tap a nonattacking creature you control without summoning sickness. When you do, add its power to this creature's until end of turn.) Linebreaker Baloth can't be blocked by creatures with power 2 or less. 4/5
Pentad Prism 2Artifact Sunburst (This enters the battlefield with a charge counter on it for each color of mana spent to cast it.) Remove a charge counter from Pentad Prism: Add one mana of any color.
Diluvian Primordial 5UUCreature — Avatar Flying When Diluvian Primordial enters the battlefield, for each opponent, you may cast up to one target instant or sorcery card from that player's graveyard without paying its mana cost. If a spell cast this way would be put into a graveyard, exile it instead. 5/5
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