Broken Wings

Green's answer to the things it historically cannot touch, bundled into a single instant. For most of its history, green got hard removal only against artifacts, enchantments, and fliers: the colors of magic it was built to distrust, plus the sky it could not otherwise reach. Naturalize-style effects handled the noncreature half; a Plummet or Clip Wings handled the airborne half. This folds all three targets into one card, so a single slot in the deck covers whatever the matchup presents. The tradeoff is the reach: it destroys a creature only if that creature has flying, which means a grounded threat walks past it untouched. That restriction is the whole reason the flexibility is allowed. A green card that could kill any creature at instant speed would break the color pie; a green card that kills any flying creature stays inside green's mandate to answer what it structurally fears. The instant speed matters more than the modality here: it lets you hold up an answer through a combat step and blow out an attacker mid-swing, or catch the enchantment before its controller can profit from it. Plain, honest utility of exactly the sort green is permitted to have, and no more.