Cuorpietra 
Heartstone
Artifact
Printed (IT)
Oracle text (EN)
Artifact
Activated abilities of creatures cost 
less to activate. This effect can't reduce the mana in that cost to less than one mana.
Printing details
- Set
- STH · 134
- Rarity
- Uncommon
- Language
- IT
- Artist
- John Matson
- Released
- 1998-03-02
- Prices
- – · –
Price history
The trend shows with at least 7 days of history.
- Cardmarket, trend
- CardTrader, Near Mint minimum (IT)
The history starts on October 28, 2026 and grows every day.
Show the data
| Date | Cardmarket, trend | CardTrader, Near Mint minimum (IT) |
|---|---|---|
| November 2, 2026 | €1.41 | €2.08 |
| November 1, 2026 | €1.33 | €2.08 |
| October 31, 2026 | €1.34 | €2.08 |
| October 30, 2026 | €1.51 | €2.08 |
| October 29, 2026 | €1.50 | €2.08 |
| October 28, 2026 | €1.49 | €2.08 |
Prices
| Source | Non-foil | Foil |
|---|---|---|
| Cardmarket | low – trend €1.41 30-day avg €1.40 | low – trend €0.00 30-day avg – |
| CardTrader (IT) | NM from €2.08 with Zero from €2.08 | NM from – |
| CardTrader (any language) | NM from €0.89 | NM from – |
Cardmarket updated Nov 2, 2026 · CardTrader updated Nov 2, 2026
Buy and look up
Legality
- standard Not legal
- pioneer Not legal
- modern Not legal
- legacy Legal
- vintage Legal
- commander Legal
- pauper Not legal
- alchemy Not legal
- brawl Not legal
- competitivebrawl Not legal
- duel Legal
- future Not legal
- gladiator Not legal
- historic Not legal
- oathbreaker Legal
- oldschool Not legal
- paupercommander Not legal
- penny Not legal
- predh Legal
- premodern Legal
- standardbrawl Not legal
- timeless Not legal
- tlr Legal
Rulings
-
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.