Spectral Bears

Creature - Bear Spirit 3/3, 1G (2)
Whenever Spectral Bears attacks, if defending player controls no black nontoken permanents, it doesn't untap during your next untap step.¹
"I hear there are Bears-or spirits-that guard caravans passing through the forest" -Gulsen, abbey matron
Illus. Pat Morrissey

Gatherer Card Rulings [Nov 2009]

• 8/1/2008: The checks for black cards is made both at the time you declare attackers and as the ability resolves. If there are any at the time attackers are declared, it won't trigger at all. If there are any at the time it resolves, the ability will do nothing.

Format Legality	Legal in Vintage, Legacy, MTGO Classic Banned in Extended, Standard
Printings (3/8)	Anthologies (Special) Homelands (Uncommon (U3)) MTGO Masters Edition (Uncommon)