Cloud Strife
Member
She has Tsunade's ability. That means she can't be killed in battle and her punches can break Susanoo's Ribs. She could also beat the shit out of base Naruto. Sakura is very strong, the problem was her delusion, thinking she caught up with them. She bellow Sasuke and leagues below Naruto.
I'm sorry, but there is no way in hell she could shrug off an Amaterasu. If anything, it would kill her just as fast as she could heal leaving herself open to attack.
On another note, Kishi definitely fucked up with Amaterasu because it's a one-hit kill, and characters can obviously never die in one hit. >.>