Magnetize

Magnetize is a negative status effect exclusive to Final Fantasy IV, and only occurs during the first run through the Lodestone Cavern. This status prevents all characters that are wearing metallic equipment from acting at all, similar to the Paralyze status effect, though if all characters were in Magnetize at the start of a battle, then the game is immediately over as nobody can act. Once the player reaches the Dark Elf and Edward plays his harp, the magnetic barrier will be lifted, removing this status from the characters to allow them to reequip metallic objects. All equipment sold in Troia prior to coming to the Lodestone Cavern are meant to be used for traversing it, as none of those equipment are metallic in nature.