She-Hulk, Jade Defender

Green has always owned artifact and enchantment removal, but the effects usually arrive as one-shot spells that do nothing else: Naturalize, Beast Within, the endless stream of green-painted Disenchant variants. This design folds that job into a body instead, spending a chunk of mana to destroy up to one target artifact or enchantment (creatures included, so long as they wear one of those types) while leaving a permanent counter behind, so the answer and a bigger threat share a single investment. The tension lives in the cost structure. At the activation is priced as a late-game payoff, not something you fire off casually, but the reduction-when-she-entered-this-turn clause rewrites that math: cast her, then activate the same turn at a discount equal to her mana cost, collapsing what would be two turns of tempo into one. The once-only restriction is what makes that a window rather than an engine. This is a single decisive use, not a repeatable toolbox, so the only real question is when to spend it. Wait, and you hold a 4/4 with reach and trample that can shatter their best artifact or enchantment whenever the mana comes free. Commit the turn she lands and you get a 5/5 that just dismantled an enchantment lock or a key artifact, all inside one main phase. A green fatty that cares about sequencing in a way green fatties usually do not, the discount clause turning a patient answer into a burst of tempo for anyone willing to overload the turn she arrives.