Interdict

Interrupt    (CMC:2)

Counter target artifact, creature, enchantment, or land ability requiring an activation cost. Abilities of that permanent cannot be played again this turn. Draw a card.

TE • ENJeff Laubenstein

™ & © 1993—1997 Wizards of the Coast

Legal in: Tempest Block,Legacy,Vintage,Commander

Oracle Text (click to copy):

Interdict {1}{U} Instant Counter target activated ability from an artifact, creature, enchantment, or land. That permanent's activated abilities can't be activated this turn. (Mana abilities can't be targeted.) Draw a card.

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View this MTG card on Gatherer

10/4/2004
This card targets the ability, and not the permanent itself.
7/1/2013
Activated abilities contain a colon. They're generally written "[Cost]: [Effect]." Some keywords are activated abilities and will have colons in their reminder texts.

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