Baneful Omen
Black has always had ways to drain a table dry, but most lean on attrition: a body you sacrifice, a permanent you tap, a creature count you whittle. This one converts the most random thing in your deck, the top card of your library, into a recurring life-loss clock, and the conversion rate is the whole gamble. Reveal a land or a one-drop and the trigger is a rounding error; reveal something expensive and an opponent watches their life total crater by six, seven, eight at a clip. The design quietly rewards a top-heavy build, because the payoff scales with the average mana value of whatever you flip, which inverts the usual instinct to keep a curve lean. Crucially, it touches no resource on the board, and it fires the same turn you cast it: the trigger sits on your end step rather than asking the enchantment to survive an opponent's removal window first. That immediacy makes it a finisher for the black control shell that has already stabilized and needs a way to close without committing to combat. The reveal also functions as a one-sided look at your next draw, paid for by showing your opponents too. Slow, all-in, and entirely dependent on a die-roll you stacked in your favor: a payoff card that asks you to build the library it punishes through.
