Intercessor's Arrest

What separates this from the long line of white leashes in the Pacifism lineage is the second clause. Those classics have always had a blind spot: they stop a creature from swinging, but they leave its abilities online, so a sacrifice engine, a tap-for-value machine, or a planeswalker ticking up loyalty keeps working while sitting quietly behind the enchantment. This aura closes most of that gap by shutting off activated abilities, promoting it from combat leash to something nearer a full lockdown. The mana-ability carve-out is a precise concession: it keeps the card from accidentally reading as "target permanent produces nothing," so a tap-for-mana dork stays on while the pump abilities, the sacrifice outlets, and the loyalty ticks all go dark. Broadening the enchant target to any permanent rather than just creatures is the other quiet upgrade, letting it answer a menacing artifact, a Vehicle it also bars from being crewed, or a battlefield-relevant enchantment. The tradeoff for that reach is speed and permanence: it is an aura, so it costs a card, resolves in a sorcery-speed window, and can be peeled off by any effect that removes an enchantment, handing the trapped permanent back intact. It answers a wider slice of the board than the classics do, at the price of being easier to unravel than exile.