Heartstone (Premium Deck Series: Slivers #26)

Heartstone {3}

Artifact

Activated abilities of creatures cost {1} 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

Illustrated by John Matson

Standard
Alchemy
Pioneer
Explorer
Modern
Historic
Legacy
Brawl
Vintage
Timeless
Commander
Pauper
Oathbreaker
Penny
Notes and Rules Information for Heartstone:
  • The cost reduction can be applied to additional costs. (2004-10-04)
  • It will not add a {1} 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. (2004-10-04)
  • Can’t reduce Snow mana costs. (2006-07-15)
  • Activated abilities contain a colon. They’re generally written “[Cost]: [Effect].” Some keywords are activated abilities and will have colons in their reminder text. (2016-06-08)