Doubling Chant | Magic: The Gathering
Formats Doubling Chant is Legal in
Official Oracle Text for Doubling Chant
Official Rulings for Doubling Chant
9/22/2011 : If you control a creature whose name has been changed by an effect (for example, a Clone that's copying another creature), you'll search for a card with the new name, not one with the original name.
9/22/2011 : If you control no creatures when Doubling Chant resolves, you may still search your library and you must shuffle your library.