Curse

Curse is an enchantment type which appears alongside Aura. All Curses enchant players and provide a detrimental effect to that player. 
==Description==
There aren't any special rules for Curses—they follow all the normal rules for Auras that enchant players—but there are some cards that refer to the Curse subtype by name.
The subtype was introduced with Innistrad, though the ability to enchant players is older with <c>Psychic Possession</c> from Dissension (though it reads "enchant opponent"), <c>Paradox Haze</c> from Time Spiral and <c>Wheel of Sun and Moon</c> from Shadowmoor. After the Innistrad block, Curses reappeared in Commander 2013. It included the first green Curse.
Curses received mixed reactions among the players. R&D chose not to reuse them in large numbers in Shadows over Innistrad. However, they made a quick reappearance in the Amonkhet block and Commander 2017 and are now considered to be deciduous.
The design of Curses was inspired by <c>Volrath’s Motion Sensor</c> from Unglued.
Curses are considered to be deciduous.
==Rules==
==Rulings==
*A Curse spell targets the player it will enchant like any other Aura spell, and a Curse stays on the battlefield like any other Aura. 
*If the enchanted player gains protection from the Curse's color (or any other characteristic the Curse has), the Curse will be put into its owner's graveyard.
*Each of the Curses can be attached to any player, including the player who cast the Curse.
*Curse is an enchantment type, not a creature type.
==Cards referring to Curses==
===Blue===
*<c>Curse of Surveillance</c>
===Black===
*
*
===Multicolor===
*
===Artifact===
*
==Named as Curses, but without the subtype==
==Trivia==
*At one point, curse counters were considered for the design Champions of Kamigawa. 
*The Mystery Booster test card <c>Celestine Cave Witch</c> uses the word "curse" as a keyword action that allows the player to create Curse enchantment tokens.
*Despite being similarly named, the <c>Cursed</c> Role from Wilds of Eldraine does not have the Curse subtype.
*Mark Rosewater has noted his belief that, "With 20/20 hindsight, from Duskmourn: House of Horror should have been a Curse." However the card's design started out using a new set mechanic (Injury) that was scrapped and the final design was never thought of in terms of curses.
==References==