Banish to Another Universe

Take the exile-until-it-leaves template that Banishing Light and Oblivion Ring made a white staple, and bolt it to affinity. That is the collision here: a one-shot removal enchantment that answers any nonland permanent (creature, planeswalker, artifact, enchantment, even the opposing exile-enchantment mirroring yours) and gets cheaper the more historic permanents you control. Affinity counting artifacts, legendaries, and Sagas together casts a wide net, and on a board built from those pieces the five-mana price tag routinely collapses to two or one. The design tension lives in where that discount comes from: the same permanents that make it cheap are the boards that most want flexible white answers, so the card scales with exactly the decks that can afford to run it. The catch is the one every exile-enchantment carries: the exile is conditional on the enchantment surviving. Destroy or bounce Banish to Another Universe and the imprisoned permanent comes home, which turns your own removal into a liability against enchantment hate and hands the affinity-cheapened cast a hidden fragility the raw text does not advertise. And unlike a spell that resolves and is gone, this answer sits on the battlefield as a target for as long as it holds its prisoner. It is a familiar single-use effect rebuilt on a cost structure that historically belonged to artifact aggro, and marrying white toolbox removal to affinity is what separates it from another Oblivion Ring variant.