Super Fly

Super Fly is the Stand of Toyohiro Kanedaichi in Diamond is Unbreakable, fixed to a towering electrical pylon that ordinary people can see. It runs entirely on its own, with no input from its user, and Toyohiro notes it would keep standing even after his death, much like Notorious B.I.G or Anubis.

The tower's core trait is that it holds a single person captive inside it, drawing on that lone prisoner's energy to keep itself running. Toyohiro was its first inmate and cannot leave until another person enters, at which point whichever of the two first steps clear of the structure walks free while the other is bound to remain. Since escape only means not standing within the frame, Toyohiro could dangle from the outside while Josuke was trapped within. Anyone trying to flee gets sheathed in steel that locks up their movement, and a slow escapee risks being swallowed into the pylon for good.

For defense, Super Fly soaks up any damage dealt to its frame and hurls it straight back at the source. Strike a pillar or even a connected cable, and the tower returns the force, often as an energy blast or as a metal duplicate of the attacking Stand erupting from the damaged spot. Objects shoved inside are violently spat out, and stray blasts ricochet around the structure until they finally strike someone. Toyohiro turns this into offense by scarring the tower at chosen angles to aim the rebound at a foe, pinning Mikitaka Hazekura with screws that fired back into him and bouncing scratch-shots into Josuke.

Toyohiro Kanedaichi is the tower's lasting occupant and user, while Josuke Higashikata and Mikitaka Hazekura each spend brief spells trapped inside it.