Vanquish the Foul

Six mana to destroy a single creature is a price white removal almost never has to pay, and the power-4-or-greater clause is the reason the rate stays sorcery-honest. The condition is doing the load-bearing work: it shuts the door on every two- and three-power body white wants you to handle with cheaper, more flexible answers, and reserves this spell for the fatty that has already landed. That makes it a reactive top-end card by construction, a clean kill aimed at the exact creatures white has the hardest time addressing: the haymaker dragon, the ramp payoff, the equipped finisher that has grown past the curve. The scry is not a kicker so much as an apology for the rate, smoothing the next draw on a turn when you have spent six mana and a full turn cycle to answer one threat at a brutal tempo loss. White has a long tradition of conditional catch-all removal, answers that hit anything but only when a constraint is met, and this sits in that lineage as the version that asks the threat to be large rather than tapped, attacking, or enchanted. The trade-off cuts both ways: against a wide board of small bodies the card sits dead in hand, with no target it is legally allowed to choose, but when a real fatty resolves it never asks what color or subtype it is, only that it is a creature big enough to be worth six mana.