Nightshade Seer

Creature - Human Wizard 1/1, 3B (4)
{2}{B}, {T}: Reveal any number of black cards in your hand. Target creature gets -X/-X until end of turn, where X is the number of cards revealed this way.
Illus. Donato Giancola

Gatherer Card Rulings [Nov 2009]

• 10/4/2004: You can reveal zero cards to give -0/-0 to a creature.

Format Legality	Legal in Vintage, Legacy Banned in Extended, Standard, MTGO Classic
Printings (1/6)	Urza's Destiny (Uncommon)