The Abyss

World Enchantment, 3B (4)
At the beginning of each player's upkeep, destroy target nonartifact creature that player controls of his or her choice. It can't be regenerated.¹
"An immense river of oblivion is sweeping us away into a nameless abyss." -Ernest Renan, Souvenirs d'Enfance et de Jeunesse
Illus. Pete Venters

Gatherer Card Rulings [Nov 2009]

• 10/4/2004: The controller of The Abyss controls the ability, but the current player chooses what gets destroyed.
• 10/1/2008: This has the supertype world. This supertype is similar to legendary. The difference is that when a world permanent enters the battlefield, any world permanents that were already on the battlefield are put into their owners' graveyards. This is a state-based action called the "world rule." The new world permanent stays on the battlefield. If two world permanents enter the battlefield at the same time, they're both put into their owners' graveyards.

Format Legality	Legal in Vintage, Legacy Banned in Extended, Standard, MTGO Classic
Printings (2/3)	Legends (Rare (R1)) MTGO Masters Edition III (Rare)