Cheapest priced copy (Apocalypse): $0.35 at Card Kingdom, near mint, their price list as of .
Mind Extraction 
Sorcery · Common · Apocalypse · #42
As an additional cost to cast this spell, sacrifice a creature.
Target player reveals their hand and discards all cards of each of the sacrificed creature's colors.
Legal inCommanderLegacyVintagePauper
Not legal inBrawlStandardPioneerModern
1 printing · $0.35 to $3.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Apocalypse | 42 | Common | $0.35 | $3.99 |
4 rulings from Wizards of the Coast
- 4 October 2004If you sacrifice a colorless creature, you get to see their hand but they discard no cards.
- 4 October 2004If you sacrifice a multicolored creature, all cards that share at least one color with the creature are discarded.
- 15 April 2013Players can only respond once this spell has been cast and all its costs have been paid. No one can try to destroy the creature you sacrificed to prevent you from casting this spell.
- 15 April 2013You must sacrifice exactly one creature to cast this spell; you cannot cast it without sacrificing a creature, and you cannot sacrifice additional creatures.