Impending Disaster | Magic: The Gathering
Formats Impending Disaster is Legal in
Official Oracle Text for Impending Disaster
—Whip Tongue, viashino technician
Official Rulings for Impending Disaster
10/4/2004 : The ability is not optional.
6/15/2010 : If this card is not on the battlefield at the times its ability resolves, then you can't sacrifice it. However, you still destroy all lands.