Pact of Negation
Instant
Counter target spell.
At the beginning of your next upkeep, pay 
. If you don't, you lose the game.
Those who expect betrayal at every turn are seldom disappointed.
Illustrated by
Mystery Booster 2#169RareEnglishLegality
Rulings
Jun 7, 2013
Although originally printed with a characteristic-defining ability that defined its color, this card now has a color indicator. This color indicator can’t be affected by text-changing effects (such as the one created by Crystal Spray), although color-changing effects can still overwrite it.