Undergrowth Leopard

Green's disenchant problem has always been that green does not disenchant. It smashes: Naturalize, Reclamation Sage, Force of Vigor, a body attached to the destruction so the color pays for its answer with a creature rather than a card. This is the smallest version of that bargain, and the leanest. The 2/2 with vigilance is a real board presence first, guarding a flank while still committing to the attack; the artifact-or-enchantment kill is a stored option you cash in exactly once, when the game finally presents a target worth trading for. That deferral is the whole point. A dedicated removal spell sits dead in hand if the opponent never plays the permanent it answers; a creature that can become removal never sits idle, because until you need it you are just attacking with a two-drop. Because the sacrifice is one-shot and costs a mana on top, the choice to spend the body on a Signet or a pillowfort enchantment is a genuine one rather than a free reflex: you are giving up your attacker to answer their permanent, and you only get to do it once. It sits in the Reclamation Sage school reduced to its cheapest workable form: no enters-the-battlefield bonus, no card advantage, just a warm body now and a stored Naturalize for whenever later arrives.