Rulings

• The ability can only target an opponent of the current player.2009-10-01
• The targeted player controlling more lands than the current player is a part of the targeting requirement. A player can't be targeted by this ability unless it's true, and the ability doesn't resolve if it's no longer true at that time.2009-10-01
• Shuffling the library is part of the optional effect. The player only shuffles if they chose to search.2008-08-01
• The land card enters under the current player's control.2004-10-04
• 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.2004-10-04