flavorText: When Urza asked the viashino what it did, they answered: "It hums."
name: Thran Turbine
originalText: During your upkeep, you may add up to two colorless mana to your mana pool. This mana cannot be spent to play spells.
printings: USG
text: At the beginning of your upkeep, you may add {C}{C}. You can't spend this mana to cast spells.
type: Artifact