Heartstone
Mana cost
Mana value3TypeArtifact
Color identity
Colorless
RarityUncommon
SetStronghold (STH)
ArtistJohn Matson
Price€1.41 · $2.39
Mana value3TypeArtifact
Color identity Colorless
RarityUncommon
SetStronghold (STH)
ArtistJohn Matson
Price€1.41 · $2.39Heartstone
Artifact
Activated abilities of creatures cost 
less to activate. This effect can't reduce the mana in that cost to less than one mana.
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
Legality
CommanderLegalStandardNot legalPioneerNot legalModernNot legalLegacyLegalVintageLegalPauperNot legalBrawlNot legalOathbreakerLegalHistoricNot legalTimelessNot legalPenny DreadfulNot legal
Rulings
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.
2006-07-15
Can’t reduce Snow mana costs.
2004-10-04
The cost reduction can be applied to additional costs.
2004-10-04
It will not add a to abilities with no generic mana in their activation cost.
2004-10-04
It will never reduce any colored mana portion of an activation cost.
