Constricting Sliver gives Slivers you control an ability that causes a zone change with a duration, a newer style of ability that’s somewhat reminiscent of older cards like Oblivion Ring. However, unlike Oblivion Ring’s abilities, this ability creates two one-shot effects: one that exiles the creature when the ability resolves, and another that returns the exiled card to the battlefield immediately after the Sliver leaves the battlefield.