Stifle

Instant, U (1)
Counter target activated or triggered ability. (Mana abilities can't be targeted.)¹
""If I wanted your opinion, I'd have told you what it was."" -Pemmin, Riptide survivor
Illus. Dany Orizio

Gatherer Card Rulings

• 10/4/2004: An activated ability has a "Cost: Effect" format. Look for the colon. A triggered ability starts with "when", "whenever", or "at".
• 10/4/2004: Game actions like the normal card, combat damage, or turning a face-down creature face up can't be targeted.
• 10/4/2004: It can target delayed triggered abilities. For example, a card that says "Whenever a player cycles a card, you may remove target creature from the game. If you do, return that creature to play at end of turn." triggers when a player cycles a card and creates a delayed trigger that happens at end of turn. You can choose to target the "at end of turn" trigger when it is placed on the stack at end of turn.

Format Legality	Legal in Vintage, Legacy, Extended Banned in Standard
Printings (1/6)	Scourge (Rare)