Reclamation

Black creatures can't swing here without their controller dismantling their own manabase first, one land per attacker, paid as attackers are declared. That tax scales against precisely the decks it was built to stop: the more black creatures across the table, the more lands shed to declare them, so a committed black aggro deck either grinds to a halt or strips itself out of the game to push damage through. Early Magic was full of color-pie hosers like this, enchantments built on the assumption that an opponent leaned hard on a single color and would keep doing so. The bet was always the same: that you knew exactly what you were answering, and that the deck across the table was mono-black enough for the answer to bite. The Circles of Protection were the white prototype of that thinking; the various Gloom and Lifeforce effects were the colored-enchantment cousins. All of them assumed a near-mono-color field, and all of them aged badly as multicolor and splash-heavy decks became the norm. A card that answers black creatures and nothing else stopped having anywhere to live the moment most aggro decks stopped being single-color. Wizards has largely abandoned this whole category of mono-target hate in favor of flexible answers that cost a little more and hit everything, which is what makes this one read like a fossil: an answer to a question almost nobody asks anymore.