Cheapest priced copy (Nemesis): $0.79 at Card Kingdom, near mint, their price list as of .
Divining Witch 
Creature — Human Spellshaper · 1/1 · Rare · Nemesis · #57
{1}{B}, {T}, Discard a card: Choose a card name. Exile the top six cards of your library, then reveal cards from the top of your library until you reveal a card with the chosen name. Put that card into your hand and exile all other cards revealed this way.
Legal inCommanderLegacyVintage
Not legal inBrawlStandardPioneerModernPauper
2 printings · $0.79 to $37.99 at Card Kingdom
One ruling from Wizards of the Coast
- 4 October 2004You name a card during resolution of the ability.