[spoiler]So in Universe 7, the Kaioshin got their ranks up to five total, as a safeguard to avoid eliminating the balance. With only one (or two really, with the old Kaioshin - apparently his being locked up in the Z Sword doesn't mean he's still living, though maybe freeing him from the sword will be part of defeating black?), it's much easier to eliminate the God of Destruction in that universe.
Unless Zeno intervenes, Black can run completely roughshod over Universe 7. Since he's probably stronger than any Kaioshin (assuming he's connected to Zamasu, who was considered a gifted fighter for a Kaioshin), he can do the same in other universes as well.[/spoiler]
[spoiler]It seems like once a Kaio puts on the Potara, he is officially promoted to Kaioshin. That seemed to be the case given the Gowasu/Zamasu interaction in episode 54 before they used the time ring.[/spoiler]Swifticuffs wrote:Perhaps Grand Supreme Kai (Shin, currently) took the title from the Dai Kaioshin when he was absorbed, presuming he was dead? Or he was appointed at some point. Just a theory, but I see why you would question this.