Planar Chaos

Enchantment, 2R (3)
At the beginning of your upkeep, flip a coin. If you lose the flip, sacrifice Planar Chaos.

Whenever a player casts a spell, that player flips a coin. If he or she loses the flip, counter that spell.¹
Illus. Ron Spencer

Format Legality	Legal in Vintage, Legacy, MTGO Classic Banned in Extended, Standard
Printings (1/6)	Judgment (Uncommon)