Enchantment, 2WW (4)
Uncommon
At the beginning of your upkeep, sacrifice Conversion unless you pay {W}{W}.
All Mountains are Plains.
Illus. Jesper Myrfors

10/4/2004: The Conversion effect is a continuous effect. There is no chance to tap a just-played mountain for red mana before it becomes a plains.
10/15/2006: Will not add or remove Snow Supertype to or from a land.
Legal in Vintage (Type 1)
Legal in Legacy (Type 1.5)
Legal in Classic (MTGO)
Legal in Commander