Starting with the next opponent in turn order (or the active player, if that player is one of your opponents), each opponent in turn order decides whether or not to copy the spell and, if they do, whether or not to choose new targets
At best, you can sacrifice something youve cheated in for tons of draw while cheating in something else
I already loved steel - mostly for big Tinker Bell - and enjoyed pairing it with emerald in my own decks, which is a fun ink colour for anyone who doesnt like being challenged
As a bonus, in combat, creatures you control with Defender gain Exalted - and we all know that any buff is welcome
Last, but certainly not least, we have Invasion of Tarkir
A number of cards in the Desert Bloom deck like Ancient Greenwarden allow you to play Land from your Graveyard negating the sacrifice