Thawing Glaciers
Land
Oracle Text
This land enters tapped.
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: Search your library for a basic land card, put that card onto the battlefield tapped, then shuffle. Return this land to its owner's hand at the beginning of the next cleanup step.
Rulings (2)
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Wizards of the CoastBecause 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.
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Wizards of the CoastThe land put onto the battlefield does not count toward your one per turn limit because it was put onto the battlefield by an effect.