Tranquility

The original mass enchantment answer, and the template every green sweeper since has measured itself against. The design is brutally simple: a sorcery that wipes the entire enchantment axis off the table, no discrimination between yours and theirs, no scaling cost, no rider. That symmetry is the discipline. Green was given access to the effect because the color's pie includes natural-order correction (the same logic that gives green artifact destruction), and the symmetric blast is the price: you cannot build around it the way white can with Disenchant-style single-target answers, so the card lives as a reactive board-state reset rather than a proactive one. Every successor has reworked one of those four constraints. Back to Nature kept the exact same scope but dropped to and moved to instant speed, gaining both efficiency and a reactive window this card never had; Creeping Mold widened the target list to artifacts and lands at a higher cost; Bane of Progress folded the sweep onto a body and a damage clock. The lineage of green's answer to permanents that are not creatures runs straight through here, and the reason the rate has crept up over thirty years (more upside, fewer drawbacks, cheaper or stapled to a threat) is that the original was deliberately undertuned for a world where enchantments were rare. The card it was answering barely existed yet; the card that answered it is still in print.