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
Ominous Traveler 2Creature — Human When Ominous Traveler enters the battlefield, draft a card from Ominous Traveler's spellbook. That card perpetually gains "You may spend mana as though it were mana of any color to cast this spell" and "When you cast this spell, return a creature named Ominous Traveler you control to its owner's hand." 1/1
Fleshformer 2BCreature — Human Wizard {W}{U}{B}{R}{G}: Fleshformer gets +2/+2 and gains fear until end of turn. Target creature gets -2/-2 until end of turn. Activate only during your turn. (A creature with fear can't be blocked except by artifact creatures and/or black creatures.) 2/2
Lignify 1GTribal Enchantment — Treefolk Aura Enchant creature Enchanted creature is a Treefolk with base power and toughness 0/4 and loses all abilities.
Mogis, God of Slaughter 2BRLegendary Enchantment Creature — God Indestructible As long as your devotion to black and red is less than seven, Mogis isn't a creature. At the beginning of each opponent's upkeep, Mogis deals 2 damage to that player unless they sacrifice a creature. 7/5
Knight-Errant of Eos 4WCreature — Human Knight Convoke When Knight-Errant of Eos enters the battlefield, look at the top six cards of your library. You may reveal up to two creature cards with mana value X or less from among them, where X is the number of creatures that convoked Knight-Errant of Eos. Put the revealed cards into your hand, then shuffle. 4/4
Naked Singularity 5Artifact Cumulative upkeep {3} (At the beginning of your upkeep, put an age counter on this permanent, then sacrifice it unless you pay its upkeep cost for each age counter on it.) If tapped for mana, Plains produce {R}, Islands produce {G}, Swamps produce {W}, Mountains produce {U}, and Forests produce {B} instead of any other type.
Edgewall Inn Land Edgewall Inn enters the battlefield tapped. As Edgewall Inn enters the battlefield, choose a color. {T}: Add one mana of the chosen color. {3}, {T}, Sacrifice Edgewall Inn: Return target card that has an Adventure from your graveyard to your hand.
Skemfar Elderhall Land Skemfar Elderhall enters the battlefield tapped. {T}: Add {G}. {2}{B}{B}{G}, {T}, Sacrifice Skemfar Elderhall: Up to one target creature you don't control gets -2/-2 until end of turn. Create two 1/1 green Elf Warrior creature tokens. Activate only as a sorcery.
Austere Command 4WWSorcery Choose two — • Destroy all artifacts. • Destroy all enchantments. • Destroy all creatures with mana value 3 or less. • Destroy all creatures with mana value 4 or greater.
Disruption Protocol UUInstant As an additional cost to cast this spell, tap an untapped artifact you control or pay {1}. Counter target spell.
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