FOILCheapest priced copy (Double Masters): $0.35 at Card Kingdom, near mint, their price list as of .
Thirst for Knowledge 
Instant · Rare · Friday Night Magic 2008 · #9
Draw three cards. Then discard two cards unless you discard an artifact card.
Legal inCommanderBrawlStandardPioneerModernLegacyVintage
Not legal inPauper
19 printings · $0.35 to $5.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Double Masters | 71 | Uncommon | $0.35 | $0.49 |
| The Brothers' War Commander | 96 | Uncommon | $0.35 | — |
| Commander 2018 | 106 | Uncommon | $0.35 | — |
| Commander Legends | 103 | Uncommon | $0.35 | $0.49 |
| Duel Decks: Elspeth vs. Tezzeret | 68 | Uncommon | $0.35 | — |
| Edge of Eternities Commander | 48 | Uncommon | $0.35 | — |
| Friday Night Magic 2008 | 9 | Rare | — | $5.49 |
| Foundations Commander | 77 | Uncommon | $0.35 | — |
| Planechase | 14 | Uncommon | $0.49 | — |
| Jumpstart | 183 | Uncommon | $0.35 | — |
| Modern Masters | 67 | Uncommon | $0.39 | $0.49 |
| Mirrodin | 53 | Uncommon | $0.59 | $3.99 |
| Marvel Super Heroes | 79 | Uncommon | $0.35 | $0.49 |
| Kamigawa: Neon Dynasty | 85 | Uncommon | $0.35 | $0.49 |
| Fallout | 180 | Uncommon | $0.35 | $0.49 |
| Fallout | 708 | Uncommon | — | $2.49 |
| Star Trek Commander | 443 | Uncommon | — | — |
| World Championship Decks 2004 | gn53 | Uncommon | $0.35 | — |
| World Championship Decks 2004 | mb53 | Uncommon | $0.35 | — |
One ruling from Wizards of the Coast
- 10 November 2020You can discard either one artifact card or two cards which may or may not be artifacts. If you really want to, you can discard two artifact cards.