Cheapest priced copy (Eldritch Moon): $0.35 at Card Kingdom, near mint, their price list as of .
Fortune's Favor 
Instant · Uncommon · Eldritch Moon · #61
Target opponent looks at the top four cards of your library and separates them into a face-down pile and a face-up pile. Put one pile into your hand and the other into your graveyard.
Legal inCommanderPioneerModernLegacyVintage
Not legal inBrawlStandardPauper
2 printings · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Eldritch Moon | 61 | Uncommon | $0.35 | $0.49 |
| Friday Night Magic 2017 | 2 | Rare | — | $0.49 |
3 rulings from Wizards of the Coast
- 13 July 2016A pile can have no cards in it. In this case, you’ll choose whether to put all the cards into your hand or into your graveyard.
- 13 July 2016You choose which pile to put into your hand and which to put into your graveyard. You can’t look at the face-down pile until after it’s moving to its new zone.
- 13 July 2016In a multiplayer game, the targeted opponent may choose what information to share with others if that player wants advice on how to split the cards, but that player doesn’t have to share any information at all.