Contagion

Pitch a black card and pay one life, and the printed five mana never enters the picture: this belongs to the free-spell cycle that taught Magic's designers a hard lesson about pricing effects in cards rather than mana. That generation was openly experimenting with the idea that card advantage and mana could trade places, and this is the punishing end of the experiment. The base effect is flexible removal, two -2/-1 counters you can pile onto one target or split across two, but paying the mana is the consolation prize, not the plan. The intended cast is free, deployed at instant speed the moment a board state cracks open. Note the math, though: the alternate cost spends two cards (the spell itself plus the pitched black card), so even a clean double kill trades at parity, not card advantage. The free cast buys tempo and timing, not raw resources. The friction the design team eventually decided it had misjudged is that exiling a black card is barely a cost in a deck overloaded with them, and one life is trivial. Several cards of this vintage carry the legacy of that reckoning. What makes this one durable as a study is how cleanly it isolates the variable: a removal spell whose real cost is the depth of your own hand.