Celestial Dawn

Enchantment, 1WW (3)
Lands you control are Plains.
Nonland cards you own that aren't in play, spells you control, and nonland permanents you control are white.
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.¹
Illus. Liz Danforth

Crystal Keep Rulings Summaries

• Does not change the color of mana produced by anything. It just allows you to spend it as if it were of a color or as if it were colorless. [Time Spiral FAQ 2006/08/30]
• If a permanent spell is played while Celestial Dawn is in play, then Celestial Dawn leaves play, the permanent's color reverts to the colors in its mana cost. [D'Angelo 2001/05/19]
• The effect to turn all your non-land cards (including artifacts) white is the effect of a static ability that will override the color as set prior to Celestial Dawn's effect. Thus, a Deathlace on casting of a spell or prior to Celestial Dawn entering play will be overridden by Celestial Dawn's effect. [Aahz 1997/03/18]
• A color change effect which enters play after Celestial Dawn can override the color changing effect of Celestial Dawn. [D'Angelo 1997/03/18]
• If an effect like Vampire Bats or Dragon Whelp is used by paying white mana, then the limitations on playing the ability still apply as if you spent the proper color. [D'Angelo 2002/07/21]
• You may use a different color mana than the color required for spells and abilities such as Soul Burn. If you do, if the spell or ability checks the actual color of the mana, it can tell the difference. For example, if you use white mana on Soul Burn, you will not gain any life. The same goes for Vigor Mortis and similar spells. [Time Spiral FAQ 2006/08/30]
• Does not change the type of lands which are not in play. Lands out of play are what they say they are. [Time Spiral FAQ 2006/08/30]
• Any "comes into play" effects of playing a land will not happen since the lands will enter play as Plains. [Time Spiral FAQ 2006/08/30]
• Will not add or remove Snow-Covered nature from a land. [D'Angelo 1998/08/11]
• If you use Magical Hack (or a similar effect) to change the word "plains" to a different land type, your lands are all of that new land type. [Time Spiral FAQ 2006/08/30]
• It no longer changes mana symbols on cards. [Rules Team 2001/05/01]
• It no longer causes your spells and abilities to produce white mana instead of other colors. [Oracle 2006/07/14]

Format Legality	Legal in Vintage, Legacy, Extended Banned in Standard
Printings (3/21)	Time Spiral Timeshifted (Special) Classic Sixth Edition (Rare) Mirage (Rare)