Rathi Assassin

Creature - Zombie Mercenary Assassin 2/2, 2BB (4)
{1}{B}{B}, {T}: Destroy target tapped nonblack creature.
{3}, {T}: Search your library for a Mercenary permanent card with converted mana cost 3 or less and put that card onto the battlefield. Then shuffle your library.¹
Illus. Dana Knuston

Gatherer Card Rulings [Nov 2009]

• 10/4/2004: Because the "search" requires you to find a card with certain characteristics, you don't have to find the card if you don't want to.

Format Legality	Legal in Vintage, Legacy Banned in Extended, Standard
Printings (2/7)	Nemesis prerelease participation bonus. (Special) Nemesis (Rare)