Nether Traitor

Creature - Spirit 1/1, BB (2)
Haste
Shadow (This creature can block or be blocked by only creatures with shadow.)
Whenever another creature is put into your graveyard from the battlefield, you may pay {B}. If you do, return Nether Traitor from your graveyard to the battlefield.¹
Illus. Vance Kovacs

Gatherer Card Rulings [Nov 2009]

• 9/25/2006: If Nether Traitor and another creature are put into your graveyard at the same time, Nether Traitor's ability won't trigger.

Format Legality	Legal in Vintage, Legacy, Extended Banned in Standard
Printings (1/9)	Time Spiral (Rare)