I would move him back into a square so you can benefit from the clone tanking atleast. You might wanna consider using Ao over Sask aswell to get even more tanky + more clones.

Isn't damage too low from using ao?

Why would it be to low? you might not be able to oneshot the entire enemy team but you will be able to stall for ages with 2x acupunctures and 2x Interupts + clones and you have enough dmg as it is anyways.

I say that because i have tried to use Ao before i had naruto and he didn't seem so good to me.

This is my lineup

Iruka Naruto x
MC GNW Kiba x
32322 Dog of hell

In order to put naruto, Kiba, MC then Iruka in.
Iruka will boost everyone up include clone. that will give you more def :)

What summon can i use if i don't have dog of hell?

use shiba then. :P

Whats the formation talent and summon ?

lol i use that exact same team. it might be best to put naruto in the open space in the back to keep him alive longer

if u want to have high damage with sage naruto go with wind main, imo water main its all about poisoning team, attack area n wait till they die. ;P. btw if u want more tanky with it, if u hate with ao replace sasuke with kabuto, ;P