Nekrataal

Creature - Human Assassin 2/1, 2BB (4)
First strike (This creature deals combat damage before creatures without first strike.)
When Nekrataal enters the battlefield, destroy target nonartifact, nonblack creature. That creature can't be regenerated.¹
[His victims don't have time to feel despair.]
Illus. Christopher Moeller

Gatherer Card Rulings [Nov 2009]

• 10/4/2004: Nothing happens if there are no non-artifact, non-black creatures on the battlefield when it enters the battlefield.

Format Legality	Legal in Vintage, Legacy, Extended Banned in Standard
Printings (5/31)	Tenth Edition (Uncommon) Core Set - Ninth Edition (Uncommon) Core Set - Eighth Edition (Uncommon) Battle Royale (Special) Visions (Uncommon)