Lawmage's Binding

The line that separates this from a straight Pacifism is flash, and it changes the card from a proactive answer into a reactive one. Pacifism-style "can't attack or block" auras have always been the budget alternative to hard removal, cheap on mana but slow: they get cast in advance, and you hope the threat still matters by the time you commit. An instant-speed window turns that plan on its head. Now the aura sits in hand as a combat trick that neutralizes a blocker after attackers are declared, ambushes a creature the moment it resolves, or shuts off an activated ability before the opponent can lean on it (the target keeps the ability but can no longer activate it). Locking down activated abilities is the quiet upgrade over the plain "can't attack or block" template; it answers the mana dorks, the pingers, and the equipment-carriers that a pure combat lock would leave functional. The trade for all that flexibility is the usual aura fragility: any way to remove the enchantment, bounce the creature, or flicker it hands the threat back intact, and you've spent three mana to buy a turn. What flash really buys is information. You wait for the opponent to overextend, then answer the thing that actually matters rather than guessing ahead of time, which is a meaningfully different card from the sorcery-speed version even though the text underneath is nearly identical.