Pinnacle Starcage

A phased-out prison with a delayed payoff bolted to the back. The enters trigger is a mass detention that ignores everything expensive and rips out the cheap layer of the board: mana dorks, one-drop hatebears, small utility artifacts, sacrifice fodder, the connective tissue that lets aggressive and combo decks function. Because the exile lasts only while this artifact stays put, it reads as a hostage situation rather than a clean answer, and that framing is what the second ability turns to your advantage. Rather than protecting the prison indefinitely, you cash it in: an expensive activation dumps every captured card into its owner's graveyard and converts that pile into a wall of 2/2 Robots. With no timing restriction on the activation, you can hold it up as an instant-speed threat, firing on an opponent's end step or in response to their attempt to break the lock. The friction lives on both ends. The activation only nets you bodies if there were low-curve permanents to exile in the first place, and the eight-mana price is steep enough that the payoff rarely comes early. The self-sacrifice clause resolves the tension cleanly: the moment you liberate the exiled cards into graveyards, the artifact leaves, so there is no version where you keep both the token army and the ongoing lockdown. This is white artifact removal built around timing rather than efficiency, rewarding the player who correctly reads when a board of small creatures should stop being someone else's and start being tokens.