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.
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Cards that do something similar expected a card that isn't here?
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Patrician's Scorn 82%
$0.28#17912
"If you've cast another white spell this turn, you may cast this spell without paying its mana cost."