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Narcolepsy

Card Name

Narcolepsy

Mana Cost

1

Type

Enchantment – Aura

Rarity

Common

rules Text

Enchant creatureAt the beginning of each upkeep, if enchanted creature is untapped, tap it.

Flavor Text

"It's so cute when it's sleeping, isn't it? Actually, it's still as abhorrent as ever, but at least it's not trying to kill us." —Noyan Dar, Tazeem lullmage

Legal Formats

Commander, Historic, Legacy, Modern, Pauper, Vintage

Not Legal Formats

Alchemy, Brawl, Pioneer, Standard

Banned Formats

Alchemy, Brawl, Pioneer, Standard

Rulings

(6/15/2010)
Narcolepsy's triggered ability has an "intervening 'if' clause." That means (1) the ability triggers only if the enchanted creature is untapped as any player's upkeep begins, and (2) the ability does nothing if the enchanted creature is already tapped by the time it resolves.
(6/15/2010)
Narcolepsy doesn't keep the enchanted creature continually tapped. The creature untaps during its controller's untap step as normal, then is tapped when Narcolepsy's ability resolves during that upkeep. The creature may be tapped in response (for example, if it has an activated ability with in its cost).