Countermand | Magic: The Gathering
Formats Countermand is Legal in
Official Oracle Text for Countermand
Official Rulings for Countermand
4/26/2014 : You may target a spell that can’t be countered with Countermand. If you do, when Countermand resolves, the target spell won’t be countered, but its controller will still put the top four cards of his or her library into his or her graveyard.