504.3. You may look at a face-down spell you control on the stack or a face-down permanent you control at any time. You can't look at face-down cards in any other zone or face-down spells or permanents controlled by another player. The ability or rules that allow a permanent to be face down may also allow the permanent's controller to turn it face up. Spells normally can't be turned face up.
Du kannst face down permanents die du kontrollierst jederzeit angucken.
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