In 54 two- or three-card combos. See Stronghold combos →
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, *Weatherlight* navigator
Card Details
- Set
- Premium Deck Series: Slivers (H09)
- Rarity
- uncommon
- Artist
- John Matson
- Collector #
- 26
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