Nether Void

World Enchantment, 3B (4)
Whenever a player casts a spell, counter it unless its controller pays {3}.¹
These days, some wizards are finding that they have a little too much spell left at the end of their mana.
Illus. Harold McNeill

Gatherer Card Rulings [Nov 2009]

• 10/4/2004: This is not an additional play cost, it is a triggered ability.
• 10/1/2008: This has the supertype world. This supertype is similar to legendary. The difference is that when a world permanent comes into play, any world permanents that were already in play are put into their owners' graveyards. This is a state-based effect called the "world rule." The new world permanent stays in play. If two world permanents come into play at the same time, they're both put into their owners' graveyards.

Format Legality	Legal in Vintage, Legacy Banned in Extended, Standard
Printings (1/2)	Legends (Rare)