flavorText: The Phyrexian death machine awoke, its coldsteel heart imbuing it with sinister new power.
name: Coldsteel Heart
printings: 2X2, C15, CM2, CSP, HA4, J22, PLST
text: This artifact enters tapped.\nAs this artifact enters, choose a color.\n{T}: Add one mana of the chosen color.
type: Snow Artifact