Exhaustion

Sorcery    (CMC:3)

Creatures and lands target opponent controls don't untap during his or her next untap step.

Tired doesn't even begin to cover it.

76 9ED • ENPaolo Parente

™ & © 1993—2005 Wizards of the Coast

Legal in: Modern,Urza Block,Legacy,Vintage,Freeform,Prismatic,Tribal Wars Legacy,Singleton 100,Commander

Oracle Text (click to copy):

Exhaustion {2}{U} Sorcery Creatures and lands target opponent controls don't untap during his or her next untap step.

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View this MTG card on Gatherer

10/4/2004
The creatures and lands are only prevented from untapping during the targeted player's next untap step. They can still can untap during other player's untap steps.
10/1/2009
No creatures or lands controlled by the player will untap during his or her next untap step. This includes those which entered the battlefield after Exhaustion resolved.

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Card Exhaustion is not on TCGPlayer.