Cheapest priced copy (Dissension): $0.35 at Card Kingdom, near mint, their price list as of .
Brain Pry 
Sorcery · Uncommon · Dissension · #39
Choose a nonland card name. Target player reveals their hand. That player discards a card with that name. If they can't, you draw a card.
Legal inCommanderModernLegacyVintage
Not legal inBrawlStandardPioneerPauper
1 printing · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Dissension | 39 | Uncommon | $0.35 | $0.49 |
2 rulings from Wizards of the Coast
- 1 May 2006You name the card during Brain Pry’s resolution, then the player reveals their hand and discards if appropriate. There is no way for the player to do anything between you naming the card and the player discarding.
- 1 February 2014If you target yourself with this spell, you must reveal your entire hand to the other players just as any other player would.