Cheapest priced copy (Magic 2010): $3.49 at Card Kingdom, near mint, their price list as of .
Burning Inquiry 
Sorcery · Common · Magic 2010 · #128
Each player draws three cards, then discards three cards at random.
Legal inCommanderModernLegacyVintagePauper
Not legal inBrawlStandardPioneer
2 printings · $3.49 to $22.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Magic 2010 | 128 | Common | $3.49 | $22.99 |
| The List | M10-128 | Common | — | $5.99 |
2 rulings from Wizards of the Coast
- 1 October 2009First the player whose turn it is draws three cards, then each other player in turn order does so. Then the active player randomly chooses the three cards they will discard, then each other player in turn order does so. Then all the cards are discarded at the same time.
- 1 October 2009Each player must discard three cards, even a player that (for some reason) didn’t actually draw three cards.