Cateran Overlord
Creature — Horror Mercenary
Sacrifice a creature: Regenerate this creature.
, 
: Search your library for a Mercenary permanent card with mana value 6 or less, put it onto the battlefield, then shuffle.
Michael Sutfin
Mercadian Masques (MMQ)
• #123Rulings
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)