Cheapest priced copy (Return to Ravnica): $0.39 at Card Kingdom, near mint, their price list as of .
Psychic Spiral 
Instant · Uncommon · Return to Ravnica · #47
Shuffle all cards from your graveyard into your library. Target player mills that many cards.
Legal inCommanderPioneerModernLegacyVintage
Not legal inBrawlStandardPauper
1 printing · $0.39 to $2.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Return to Ravnica | 47 | Uncommon | $0.39 | $2.49 |
2 rulings from Wizards of the Coast
- 1 October 2012Psychic Spiral won’t be shuffled into your library, and it won’t be counted when determining how many cards the target player puts into their graveyard. It will be put into your graveyard after you follow its instructions.
- 1 October 2012If you cast Psychic Spiral when there are no cards in your graveyard, you’ll still shuffle your library.