Your search for "Stalking Assassin 277" revealed the following:
Stalking Assassin (INV) from Invasion, available at 401 Games Canada. Rarity: Rare Finish: Normal Artist: Dana Knutson Card Text:3U, T: Tap target creature.3B, T: Destroy target tapped creature.
Stalking Assassin (Foil) (INV) from Invasion, available at 401 Games Canada. Rarity: Rare Finish: Foil Artist: Dana Knutson Card Text:3U, T: Tap target creature.3B, T: Destroy target tapped creature.