Stifle
Instant (CMC 1)
Counter target activated or triggered ability.
(Mana abilities can't be targeted.)
Decks with Stifle
[HA5] Historic Anthology 5 #8 (R)
[MP2] Amonkhet Invocations #18 (S)
[CNS] Conspiracy #108 (R)
[SCG] Scourge #52 (R)
[G09] Judge Gift Cards 2009 #3 (R)
[PRM] Magic Online Promos #43540 (R)
[WC04] World Championship Decks 2004 #gn52sb (R)