In the Standard top 8 decks or sideboards of Pro Tour Theros, there will be at least one copy of: Swan Song

Created by Roxolan on 2013-09-14; known on 2013-10-14; judged wrong by ygert on 2013-10-13.

• Roxolan estimated 3% on 2013-09-14
• User1234 estimated 50% and said “Perfect fit for American control. The 2/2 that the opponent gets as consolation is almost meaningless, given the number of Shock type spells that are available, even if they aren’t just planning to cast Supreme Verdict next turn.” on 2013-09-15
• ygert said “60” on 2013-09-16
• ygert estimated 60% on 2013-09-16
• ygert   judged this prediction wrong on 2013-10-13.