Dominaria Spoiler Digest - Who's Who and What's What from the Release Notes
Tempt with Discovery
Tempting offer — Search your library for a land card and put it onto the battlefield. Each opponent may search his or her library for a land card and put it onto the battlefield. For each opponent who searches a library this way, search your library for a land card and put it onto the battlefield. Then each player who searched a library this way shuffles it.
10/17/2013 Your opponents decide in turn order whether or not they accept the offer, starting with the opponent on your left. Each opponent will know the decisions of previous opponents in turn order when making his or her decision.
10/17/2013 After each opponent has decided, the effect happens simultaneously for each one who accepted the offer. Then, the effect happens again for you a number of times equal to the number of opponents who accepted.