In the Eye of Chaos

Enchant World    (CMC:3)

All instants and interrupts are countered unless their caster pays an additional , where X is the casting cost of the spell being cast.

LE • ENBrian Snoddy

™ & © 1993—1994 Wizards of the Coast

Legal in: Legacy,Vintage,Commander

Oracle Text (click to copy):

In the Eye of Chaos {2}{U} World Enchantment Whenever a player casts an instant spell, counter it unless that player pays {X}, where X is its converted mana cost.

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10/4/2004
This ability triggers when the spell is cast.
10/1/2008
This has the supertype world. 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.

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