Purify

White's answer to a board cluttered with mana rocks and enchantment engines, built on the symmetrical-board-wipe principle that defines the color's removal philosophy: it does not discriminate between your artifacts and theirs, and it leaves every noncreature permanent outside those two types untouched. That second clause is the design tell. Where a creature wrath asks you to rebuild your army afterward, this asks you to build a deck light on permanents in the two categories it sweeps, then time the cast for maximum asymmetry. The lineage runs deep in white: Disenchant handles one target, Aura of Silence taxes and then sacrifices for a single hit, and the full sweep here trades all of that precision for raw breadth. What keeps the breadth honest is the price. Five mana on your own turn means it can never be the reactive answer a one-target instant provides; you surrender a whole turn to reset two permanent types, and you do it proactively rather than in response. The card wants a specific table state, the one where artifacts and enchantments have stacked up enough that wiping both at once justifies the tempo you give back. It is the wide-but-slow end of white's disenchant spectrum, the version that assumes the problem has multiplied past the point where picking targets one at a time can keep up.