Cheapest priced copy (Mystery Booster 2): $8.49 at Card Kingdom, near mint, their price list as of .
Demonic Consultation 
Instant · Uncommon · Ice Age · #121
Choose a card name. Exile the top six cards of your library, then reveal cards from the top of your library until you reveal a card with the chosen name. Put that card into your hand and exile all other cards revealed this way.
Legal inCommander
Restricted inVintage
Banned inLegacy
Not legal inBrawlStandardPioneerModernPauper
5 printings · $8.49 to $179.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Ice Age | 121 | Uncommon | $9.99 | — |
| Mystery Booster 2 | 181 | Uncommon | $8.49 | $179.99 |
| Secret Lair Countdown | 4 | Rare | $9.99 | $14.99 |
| Secret Lair Countdown | 31 | Rare | — | $99.99 |
| Secret Lair Drop | 1127 | Rare | $24.99 | $29.99 |
4 rulings from Wizards of the Coast
- 4 October 2004There is no way to make this card affect your opponent. It affects "you", and "you" means the controller of the spell. It has no targets.
- 4 October 2004You must name a card that actually exists in the game of Magic.
- 1 October 2008You don't name a card until Demonic Consultation resolves.
- 1 October 2008If you don't reveal the named card (perhaps because it was in the top six cards of your library), you'll end up exiling your entire library. You don't lose the game at that point, but will lose the next time you're instructed to draw a card.