Mirror Sheen | Magic: The Gathering
Formats Mirror Sheen is Legal in
Official Oracle Text for Mirror Sheen
Official Rulings for Mirror Sheen
8/1/2008 : It doesn't matter who controls the spell.
8/1/2008 : The copy will have the same targets as the spell it's copying unless you choose new ones. You may change any number of the targets, including all of them or none of them.