There are various formations, and since you did not write, i feel like pointing out, you need a minimum power to beat it. If you lack power, its wont matter what tactic you used, I beat it with the midnight, iruka, kurenai, Lee team, or there is a variation for this with earth too, but I did with 63k power, if yours is too low, wont matter what you do, you will fail, or even if you beat it accidentally, it will take you hundreds of tries, which is a waste of time. Once you upgraded 1 equip, it wont have higher lvl, so after the initial boost from getting all upgraded, you will be struck again. Scroll has 100% drop rate and next equipment upgrade is non where to be see or nor having any idea about due date, there is not much reason to be desperate and try to ru*.

I dont think that gonna work. Because its rely too much on rng to chaos chiyo. I tried with that team too, but the dmg was too low, could not finish chiyo and she keep killing me in the end. And my power is higher than yours. I would say try it with earth main if you have lee and Iruka. Will have a better chance.