Dubious Challenge
Kaladesh — rare
Sorcery
Dubious Challenge rulings:
2016-09-20: The creature cards you exile are face up. Your opponent can see them while deciding whether to take one and which to take.
2016-09-20: You may choose to exile only one creature card. If you do, the target opponent chooses who gets the card.
2016-09-20: You may choose to exile no creature cards, even if there are one or more among the top ten cards of your library.
2016-09-20: The cards that you look at but don't exile never leave your library. They're shuffled along with the rest of your library.
2016-09-20: In a multiplayer game, you must choose the target opponent before you look at your top ten cards and decide what to exile.