Bleach Chapter 516

[Prof. Chaos]

So a single member of ZERO SQUAD is stronger than all 13 Captains combined?

[bagandscalpel]

So a single member of ZERO SQUAD is stronger than all 13 Captains combined?

Not sure what the original JP text says, but the translation definitely used: "their total power" when describing Zero Squad.

Gives Kubo leeway, you know, to kill off any one of them in a moment's notice.

[Archangel]

So a single member of ZERO SQUAD is stronger than all 13 Captains combined?

Not necessarily, but as a group they are more powerful than all of the Gotei 13.

Probably because they know of some state beyond the Bankai, which they will teach Ichigo. That or Ishida will teach him some energy manipulation bulshit which will let him put the bankai back together.