flavorText: The Phyrexian death machine awoke, its coldsteel heart imbuing it with sinister new power.
name: Coldsteel Heart
originalText: Coldsteel Heart comes into play tapped.\nAs Coldsteel Heart comes into play, choose a color.\n{T}: Add one mana of the chosen color to your mana pool.
printings: 2X2, C15, CM2, CSP, HA4, J22, PLST
text: Coldsteel Heart enters tapped.\nAs Coldsteel Heart enters, choose a color.\n{T}: Add one mana of the chosen color.