Serene Heart

A specialist's answer to a problem most decks never have to think about, and a relic of the years when enchantment removal was sliced by subtype. Auras (then "local enchantments") were the half of the enchantment world that attached to permanents: pacifism effects, stat boosts, the curses and chains that turned a creature into a liability. This sweeps every one of them off the table at once, at instant speed, for two mana, and leaves global enchantments untouched. That bifurcation is the design point. Where a card like Disenchant trades flexibility for a single target, this gives up the global half of the type entirely to buy a board-wide answer to the local half, the kind of one-card reset that matters when an opponent has committed several Auras to lock down or pump a creature. The instant timing is the detail that earns the line: it lets you wait for the opponent to overcommit an Aura-based plan, then unwind it in response to their attack or their pump. The narrowing is what dates it. Green has always been one of Magic's primary colors for tearing down artifacts and enchantments, so a green sweeper is no surprise; the surprise is the surgical limit to the Aura subtype, an answer tuned to a single shape of threat at a moment when designers were still carving the enchantment type into its component parts.