The Mirrodin Besieged Magic: The Gathering White Sun's Zenith card is a rare, standard-sized card from the 2011 set "Mirrodin Besieged". This instant card, illustrated by Mike Bierek, bears the cost "Xww" and is part of the game Magic: The Gathering. Manufactured by Wizards of the Coast in the United States, this English-language card features a regular finish and belongs to the color White. As a non-autographed vintage piece, it offers a unique addition to any Magic: The Gathering collection.