Hey,

Basically Ultimate Training sometimes requires you to reach the written power or initiative and when you do that, the level becomes really easy. You could give it a try with some clones build, as those states may deal a lot of damage to you if you hadn't reached the recommended power/initiative. An option would be Kushina, Wind Main, Gaara and Sasuke Suit/Any other supporter. I would suggest you however to increase your initiative slowly, so you'll have it easier for the next stages. Try to focus a bit more towards cave keys for some more runes. The new system ,, Ninja Assist '' also at the moment gives a very awesome amount of stats including initiative.

As for which ninja to focus on towards, Six Paths Naruto, Itachi Edo are right now really an excellent combination for the current meta, plus an awesome team which helps you in all in game modes. You can start with Naruto first if you want to, then move on to the next ones.

Hope it helps ~

No problem ~

You should try maybe and save for one month moon scrolls and invest fully only towards the cave keys. When a rebate hits up, you should easily be close to around 1.7-1.8k cave keys. You can invest there around 3k coupons and increase them to 2100, for 2 yellow orbs. This will give you a nice sub stat boost. Also, about the eight gates runes, since you have yet to unlock them all, you can simple drop attack for initiative.