Heartstone - Foil Tweet Out of stock. Wishlist Details Color: Artifact Card Text: Activated abilities of creatures cost {1} less to activate. This effect can't reduce the amount of mana an ability costs to activate to less than one mana. Rarity: U Cost: 3 Card Type: Artifact Name: Heartstone Finish: Foil Card Number: 26/41 Set Name: Premium Deck Series: Slivers
