Heartstone
Premium Deck Series: Slivers (H09 #26)
Pricespreview
CHCardhoarder
Foil
0.62 tix
CKCard Kingdom
Foil
$6.49
CMCardmarket
Foil
€2.02
MPMana Pool
Foil
$3.24
TCTCGplayer
Foil
$5.94
Heartstone
CMC: 3
Type
Artifact
Rules Text
Activated abilities of creatures cost 
less to activate. This effect can't reduce the mana in that cost to less than one mana.
Printing
Premium Deck Series: Slivers (H09 #26)
uncommon
Illustrated by John Matson