Royal Decree
Enchantment
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Oracle Text
Cumulative upkeep
(At the beginning of your upkeep, put an age counter on this permanent, then sacrifice it unless you pay its upkeep cost for each age counter on it.)
Whenever a Swamp, Mountain, black permanent, or red permanent becomes tapped, this enchantment deals 1 damage to that permanent's controller.
Rules for this card
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A keyword ability that imposes an increasing cost to keep a permanent on the battlefield. See rule 702.24, “Cumulative Upkeep.”
Rulings (1)
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Wizards of the CoastRoyal Decree’s ability will trigger a maximum of once for each permanent that becomes tapped, even if that permanent meets multiple criteria. (For example, Badlands is both a Swamp and a Mountain.)
Other Printings
Masters Edition II (me2)