The Pandorica

Phasing is a mechanic most cards touch once, briefly, and then release: a permanent that phases out is still owned, still counted, still technically there, but it may as well not exist until it phases back in. This one weaponizes that limbo into a permanent lock. Point the tapped-state ability at another nonland permanent and it phases out with no way home for as long as this stays tapped, and the untap-suppression clause on the front lets you choose, every turn, to keep it tapped forever. The result is exile that never says "exile": no death trigger, no leaves-the-battlefield trigger, no graveyard, no way for the imprisoned permanent to interact until you release it. The sorcery-speed restriction is the price. You cannot spring the trap in response to anything, so a blocker or an active threat has to be handled on your own turn, and the target picks itself back up the instant this untaps or leaves the battlefield, which makes the jailer itself the obvious answer. It is a color-appropriate white removal that respects the color's traditional aversion to permanent destruction: nothing dies, nothing is destroyed, a permanent is simply set aside indefinitely. Flavor and function line up cleanly here, which is more than most licensed-crossover artifacts can claim.