Heartstone
Stronghold · #134 · Uncommon
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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
Card details
- Shown printing
- Stronghold (STH)
- Artist
- John Matson
- Color identity
- Colorless
- Colors
- Colorless
- Mana value
- 3
- First released
- March 2, 1998
- Printings
- 4
- EDHREC rank
- #3881 on EDHREC
- Market price
- $1.61 (cheapest printing, updated weekly)
Legality
- StandardNot legal
- PioneerNot legal
- ModernNot legal
- LegacyLegal
- VintageLegal
- CommanderLegal
- PauperNot legal
- BrawlNot legal
- Standard BrawlNot legal
- HistoricNot legal
- TimelessNot legal
- AlchemyNot legal
- GladiatorNot legal
- OathbreakerLegal
- Pauper CommanderNot legal
- Duel CommanderLegal
- PreDHLegal
- PremodernLegal
- Old SchoolNot legal
- Penny DreadfulNot legal
- FutureNot legal
Rulings (5)
It will never reduce any colored mana portion of an activation cost.
It will not add a
to abilities with no generic mana in their activation cost.The cost reduction can be applied to additional costs.
Can’t reduce Snow mana costs.
Activated abilities contain a colon. They’re generally written “[Cost]: [Effect].” Some keywords are activated abilities and will have colons in their reminder text.
All printings
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Card data and images from Scryfall.