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
A-Security Rhox 2RGCreature — Rhino Warrior You may pay {R}{G} rather than pay this spell's mana cost. Spend only mana produced by Treasures to cast it this way. 5/5
Security Rhox 2RGCreature — Rhino Warrior You may pay {R}{G} rather than pay this spell's mana cost. Spend only mana produced by Treasures to cast it this way. 5/4
Mascot Interception 3RSorcery This spell costs {3} less to cast if it targets a creature token. Gain control of target creature until end of turn. Untap that creature. It gets +2/+0 and gains haste until end of turn.
Edgin, Larcenous Lutenist 1URLegendary Creature — Human Bard Each nonland card in your hand without foretell has foretell. Its foretell cost is equal to its mana cost reduced by {2}. (During your turn, you may pay {2} and exile it from your hand face down. Cast it on a later turn for its foretell cost.) Whenever you cast your second spell each turn, goad target creature an opponent controls. 3/3
Underdark Beholder 4BBCreature — Beholder Underdark Beholder enters the battlefield with ten eyestalk counters on it. If Underdark Beholder would be dealt damage, remove that many eyestalk counters from it instead. If you can't, sacrifice it. Whenever Underdark Beholder attacks, reveal cards from the top of your library until you reveal an instant, sorcery, or enchantment card with converted mana cost less than the number of eyestalk counters on Underdark Beholder. You may cast it without paying its mana cost. Shuffle your library. 6/6
Watcher of the Spheres WUCreature — Bird Wizard Flying Creature spells with flying you cast cost {1} less to cast. Whenever another creature with flying enters the battlefield under your control, Watcher of the Spheres gets +1/+1 until end of turn. 2/2
Mindsplice Apparatus 3UArtifact Flash At the beginning of your upkeep, put an oil counter on Mindsplice Apparatus. Instant and sorcery spells you cast cost {1} less to cast for each oil counter on Mindsplice Apparatus.
Kentaro, the Smiling Cat 1WLegendary Creature — Human Samurai Bushido 1 (Whenever this creature blocks or becomes blocked, it gets +1/+1 until end of turn.) You may pay {X} rather than pay the mana cost for Samurai spells you cast, where X is that spell's mana value. 2/1
Arachnus Web 2GEnchantment — Aura Enchant creature Enchanted creature can't attack or block, and its activated abilities can't be activated. At the beginning of the end step, if enchanted creature's power is 4 or greater, destroy Arachnus Web.
Invasion of the Giants UREnchantment — Saga (As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.) I — Scry 2. II — Draw a card. Then you may reveal a Giant card from your hand. When you do, Invasion of the Giants deals 2 damage to target opponent or planeswalker. III — The next Giant spell you cast this turn costs {2} less to cast.
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