Deconstruct

Destroying an artifact has always been green's birthright; the wrinkle here is that the destruction refunds itself. Most green artifact answers leave you down a turn: you spend three mana to kill their permanent and pass with nothing to show for it. This one hands the entire cost back the moment it resolves, three green mana floating in your pool to spend during the same main phase. The math nets to exactly zero (three to cast, three returned), so this is a free answer rather than a ritual or an accelerant; it does not increase your total mana, it just declines to charge you for the destruction. The payoff is that the hate spell folds into your curve without costing a beat: crack their artifact and still deploy the three-drop you meant to play, since green mana pays generic costs as readily as colored ones. That mana-neutral framing is the entire design idea. The conditions on both ends are what keep it from being a strictly-better Naturalize. You need an artifact to point it at, or the spell is a blank. And because this is a sorcery, the rebate lives and dies inside the main phase you cast it in: mana pools empty at the end of each step and phase, so anything you do not spend before that main phase ends simply evaporates. The card reads as a conditional answer for those reasons, but the underlying move (priced removal that returns its own cost so the answer never sets you back) is a piece of cost-mitigation work green has reached for in various shapes since.