Cateran Slaver
Creature — Horror Mercenary
Swampwalk (This creature can't be blocked as long as defending player controls a Swamp.)
, 
: Search your library for a Mercenary permanent card with mana value 5 or less, put it onto the battlefield, then shuffle.
Carl Critchlow
Mercadian Masques (MMQ)
• #125Rulings
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.
(wotc • 2004-10-04)
Rulings
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.
(wotc • 2004-10-04)