Celestial Dawn
Enchantment
Lands you control are Plains.
Nonland permanents you control are white. The same is true for spells you control and nonland cards you own that aren't on the battlefield.
You may spend white mana as though it were mana of any color. You may spend other mana only as though it were colorless mana.
Printings & Conditions (4)
Classic Sixth Edition (6ED)(Classic 6th Edition)#7Rare
Mirage (MIR)(Mirage)#6Rare
The List (PLST)(Mystery Booster Retail Edition Foils)#TSB-3Mythic
Time Spiral Timeshifted (TSB)(Time Spiral Time Shifted)#3Rare