Secure Detention

Pacifism's most complete descendant. The original taught white a lesson it has kept relearning: a creature that can't attack or block is answered without ever leaving the battlefield, no removal spell needed. But that leaves the edge cases: a wall with a relevant tap ability, an artifact with a game-ending activation, a creature whose whole point sits off the combat step. This closes all three. It enchants artifacts as well as creatures, and it shuts off activated abilities entirely, which means it neutralizes mana rocks, planeswalker-equivalent artifact engines, and any creature whose threat was never its body in the first place. The Soldier token is the quiet reason the four mana isn't dead weight: pinning down an opposing permanent and adding a blocker in the same breath turns a purely defensive Aura into a modest tempo swing, so the card does something for you even against a target that was never going to attack. What it can't do is answer anything with a triggered ability or a static effect, which is where the "detention" framing stops short of a true exile: the permanent stays on the battlefield, its owner still controls it, and a single bounce or enchantment-removal spell hands it right back. This is the top end of the pacify-and-hold lineage, built for the tables where a creature and an artifact are equally likely to be the thing that needs shutting off.