USD
$3.07
EUR
€1.33
MTGO
0.06 tix
Heartstone
Artifact
Activated abilities of creatures cost 
less to activate. This effect can't reduce the mana in that cost to less than one mana.
"Finding a true heartstone is even harder than finding a true heart." —Hanna
Commander bracket
1
+
Fits any bracket
No Game Changer, land denial, extra turns or two-card combos.
Derived from card traits, not a ruling — bracket rules turn on how a deck intends to use a card. Bracket rules
EDHREC
Salt Score
0.21
How much players resent seeing this card. The scale tops out around 3.1.
Combos 167
Sliver Queen+Cloudshredder Sliver+Gemhide Sliver+Heartstone
Infinite creature ETBInfinite creature tokens
2,166 decks
Commander Spellbook ↗
Sliver Queen+Cloudshredder Sliver+Manaweft Sliver+Heartstone
Infinite creature ETBInfinite creature tokens
2,155 decks
Commander Spellbook ↗
Voltaic Construct+Heartstone+Palladium Myr
Infinite untap of artifact creatures you control
1,309 decks
Commander Spellbook ↗
Sliver Queen+Ashnod's Altar+Heartstone
Infinite colorless manaInfinite creature ETBInfinite creature LTBInfinite creature sacrifice triggersInfinite creature tokensInfinite death triggers
1,006 decks
Commander Spellbook ↗
Sliver Queen+Blur Sliver+Manaweft Sliver+Heartstone
Infinite creature ETBInfinite creature tokens
956 decks
Commander Spellbook ↗
Sliver Queen+Blur Sliver+Gemhide Sliver+Heartstone
Infinite creature ETBInfinite creature tokens
953 decks
Commander Spellbook ↗
Basalt Monolith+Heartstone+Karn, the Great Creator
Infinite colorless mana
938 decks
Commander Spellbook ↗
Basalt Monolith+Heartstone+Karn, Silver Golem
Infinite colorless mana
638 decks
Commander Spellbook ↗
Urza, Lord High Artificer+Pili-Pala+Heartstone
Cast all spells in your libraryExile your libraryInfinite colored mana
304 decks
Commander Spellbook ↗
Yurlok of Scorch Thrash+Umbral Mantle+Heartstone
Infinite black mana for opponentsInfinite green mana for opponentsInfinite lifelossInfinite red mana for opponentsInfinitely large creature until end of turn
299 decks
Commander Spellbook ↗
Basalt Monolith+Heartstone+Trazyn the Infinite
Infinite colorless mana
210 decks
Commander Spellbook ↗
Basalt Monolith+Heartstone+Tezzeret, Betrayer of Flesh
Infinite colorless mana
204 decks
Commander Spellbook ↗
Sliver Queen+Reflex Sliver+Gemhide Sliver+Heartstone
Infinite creature ETBInfinite creature tokens
194 decks
Commander Spellbook ↗
Sliver Queen+Reflex Sliver+Manaweft Sliver+Heartstone
Infinite creature ETBInfinite creature tokens
192 decks
Commander Spellbook ↗
Sliver Queen+Phyrexian Altar+Heartstone
Infinite creature ETBInfinite creature LTBInfinite creature sacrifice triggersInfinite death triggers
176 decks
Commander Spellbook ↗
Basalt Monolith+Cyberdrive Awakener+Heartstone
Infinite colorless mana
102 decks
Commander Spellbook ↗
Filigree Sages+Gilded Lotus+Heartstone
Infinite colored manaInfinite mana artifacts you control can produceInfinite untap of artifacts you control
95 decks
Commander Spellbook ↗
Meria, Scholar of Antiquity+Pili-Pala+Heartstone
Infinite colored mana
72 decks
Commander Spellbook ↗
Olivia Voldaren+Revel in Riches+Heartstone
Destroy all creatures opponents controlDestroy each creature that enters the battlefield under an opponent's controlLock
48 decks
Commander Spellbook ↗
Knacksaw Clique+Paradise Mantle+Heartstone
Exile each opponent's library
43 decks
Commander Spellbook ↗
Basalt Monolith+Heartstone+Living Brain, Mechanical Marvel
Infinite colorless mana
37 decks
Commander Spellbook ↗
Basalt Monolith+Heartstone+March of the Machines
Infinite colorless mana
37 decks
Commander Spellbook ↗
Heartstone+Auriok Salvagers+Lotus Petal
Infinite creature ETBInfinite creature LTBInfinite creature sacrifice triggersInfinite storm count
33 decks
Commander Spellbook ↗
Codie, Vociferous Codex+Voltaic Construct+Heartstone
Cast a subset of spells in your libraryInfinite colored manaInfinite untap of artifact creatures you control
26 decks
Commander Spellbook ↗
Meria, Scholar of Antiquity+Farmstead Gleaner+Heartstone
Infinite +1/+1 counters on a creature
24 decks
Commander Spellbook ↗
Kenrith, the Returned King+Crystalline Crawler+Kami of Whispered Hopes+Heartstone
Infinite +1/+1 counters on creatures you controlInfinite card draw for any number of playersInfinite colored manaInfinite draw triggers for any number of opponentsInfinite lifegainInfinite lifegain triggersReturn all creature cards from all graveyards to the battlefield under your control
22 decks
Commander Spellbook ↗
Gyre Engineer+Umbral Mantle+Heartstone
Infinitely large creature until end of turn
21 decks
Commander Spellbook ↗
Red Death, Shipwrecker+Heartstone+Prismite+Freed from the Real
Infinite card draw for any number of opponentsInfinite draw triggers for any number of opponents
21 decks
Commander Spellbook ↗
Codie, Vociferous Codex+Umbral Mantle+Heartstone
Cast a subset of spells in your libraryInfinitely large creature until end of turn
21 decks
Commander Spellbook ↗
Red Death, Shipwrecker+Heartstone+Prismite+Pemmin's Aura
Infinite card draw for any number of opponentsInfinite draw triggers for any number of opponents
20 decks
Commander Spellbook ↗
Basalt Monolith+Heartstone+The Blackstaff of Waterdeep
Infinite colorless mana
18 decks
Commander Spellbook ↗
Cloud of Faeries+Eldrazi Displacer+Heartstone
Infinite creature ETBInfinite creature LTB
17 decks
Commander Spellbook ↗
Leyline of Abundance+Scuttling Sliver+Manaweft Sliver+Heartstone
Infinite +1/+1 counters on creatures you controlInfinite colored manaInfinite untap of some creatures you control
16 decks
Commander Spellbook ↗
Leyline of Abundance+Scuttling Sliver+Gemhide Sliver+Heartstone
Infinite +1/+1 counters on creatures you controlInfinite colored manaInfinite untap of some creatures you control
15 decks
Commander Spellbook ↗
Red Death, Shipwrecker+Heartstone+Pemmin's Aura+Stonework Packbeast
Infinite card draw for any number of opponentsInfinite draw triggers for any number of opponents
15 decks
Commander Spellbook ↗
Red Death, Shipwrecker+Heartstone+Freed from the Real+Stonework Packbeast
Infinite card draw for any number of opponentsInfinite draw triggers for any number of opponents
15 decks
Commander Spellbook ↗
Codie, Vociferous Codex+Filigree Sages+Heartstone
Cast a subset of spells in your library
14 decks
Commander Spellbook ↗
Sliver Queen+Thermopod+Heartstone
Infinite creature ETBInfinite creature LTBInfinite creature sacrifice triggersInfinite death triggers
13 decks
Commander Spellbook ↗
Careful Cultivation+Umbral Mantle+Heartstone
Infinite mana creatures you control can produceInfinite untap of creatures you controlInfinitely large creature until end of turn
12 decks
Commander Spellbook ↗
Basalt Monolith+Heartstone+Sydri, Galvanic Genius
Infinite colorless mana
12 decks
Commander Spellbook ↗
Deadeye Navigator+Relic of Legends+Heartstone
Infinite creature ETBInfinite creature LTB
12 decks
Commander Spellbook ↗
Showing the 50 most played of 167.
Format legality
Standard
Not legal
Pioneer
Not legal
Modern
Not legal
Legacy
Legal
Vintage
Legal
Pauper
Not legal
Commander
Legal
Oathbreaker
Legal
Duel Commander
Legal
Brawl
Not legal
Standard Brawl
Not legal
Historic
Not legal
Timeless
Not legal
Alchemy
Not legal
Penny
Not legal
Premodern
Legal
PreDH
Legal
Pauper EDH
Not legal
Old School
Not legal
Future
Not legal
Gladiator
Not legal
Rulings
- 2004-10-04
It will never reduce any colored mana portion of an activation cost.
- 2004-10-04
It will not add a
to abilities with no generic mana in their activation cost. - 2004-10-04
The cost reduction can be applied to additional costs.
- 2006-07-15
Can’t reduce Snow mana costs.
- 2016-06-08
Activated abilities contain a colon. They’re generally written “[Cost]: [Effect].” Some keywords are activated abilities and will have colons in their reminder text.