Cheapest priced copy (Conspiracy: Take the Crown): $0.35 at Card Kingdom, near mint, their price list as of .
Unnerve 
Sorcery · Common · Battle Royale Box Set · #91
Each opponent discards two cards.
Legal inCommanderLegacyVintagePauper
Not legal inBrawlStandardPioneerModern
5 printings · $0.35 to $0.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Battle Royale Box Set | 91 | Common | $0.39 | — |
| Commander Anthology Volume II | 81 | Common | $0.39 | — |
| Commander 2011 | 105 | Common | $0.39 | — |
| Conspiracy: Take the Crown | 150 | Common | $0.35 | $0.99 |
| Urza's Saga | 162 | Common | $0.35 | — |
One ruling from Wizards of the Coast
- 4 October 2004Players with less than 2 cards discard all they have.