Debtor's Pulpit

The trick is in where the effect lives. Conventional creature-neutralizers like Pacifism and Arrest attach to the threat they answer, which makes them fragile: a single bounce or destruction spell two-for-ones the aura and frees the creature. This puts the payload somewhere stranger, granting a repeatable tap ability to a land rather than detaining the creature directly. The granted ability pins exactly one creature per turn, so it answers a single oversized threat you intend to keep stunned rather than clearing a developed board you need to deal with all at once. Because the ability lives on a land that has presumably been in play for a while, summoning sickness never enters into it: the effect is live the instant the aura resolves, and you can hold up the activation that same turn. The catch is that for all this indirection, it is still an Aura, and standard enchantment removal answers it cleanly; routing the effect through a land buys flexibility in which creature you lock, not immunity to disenchant effects. What you get is less a removal spell than recurring detention, a soft creature lock that keeps one threat tapped down indefinitely, at the cost of five mana and a card the opponent can still profitably trade for if they happen to be holding the right answer.