I'm not sure if you mean what jutsu, or what whole attack (such as Pein attacking Konoha...)
I can't tell you what the strongest JUTSU is, but I think that Pein was the biggest attack.
rasen-shuriken
Lava Release : Rasenshuriken
October 10
None
His birthday is October 10th
just go to naruto.com and you will find the anwser it is jiraia
Well you can watch 'Naruto: Shippuden' episodes on 'Disney XD'
the best-sengan!
kage bunshin no jutsu. and rasengan
No.
sakura
B
He has no sisters.
narutos dad and 4th
October 10
No
hokage
uzimaki
None