I'm pretty sure gaaras sand is not really considered flying, since its levitation is propelled by the sand. Which means it could be disrupted by an attack from the ground. Even sand dissolves in acid, not just metals. Katsuyas spit could dissolve anything.
Base Tsunade is as strong as Ay using chakra enhancement. If Tsunade enhance herself with chakra she would be too much for Ay. A couldn't possible land a mortal blow on Tsuanade while mitotic regeneration is active.
Her regeneration is extremely fast as proven by her surviving mabuis teleportation which could have damage every cell of a normal human. Mei's lava is nothing compared to her regeneration.
How many ninjas have you seen to have suffered head shots in Naruto? I'm pretty sure that number don't exist. Besides it is common sense for anyone to protect their heads at all cost.
Long story short, Mitotic regeration plus katsuyas acid > most other gokages attacks except Jinton. Which is why only Oonoki could defeat her.
You make no sense bro. Sand is insoluble in acid you should know that from chemistry class and only in super strong I mean strong acid it rots slowly. So like I said his sand is either stopping the slug or slowing it down. Ez. Next thing is you say he can only levitate but levitate is a form of flying. That is like saying a Helicopter only levitates but it does not fly bro. With this your saying his sand can be cut off from the ground?
Have we seen plenty of times where Gaara disconnect from the ground. Yes we have. Reread the manga and watch the anime it is not happening. Example ez
1556 where is the sand touching the ground? Are you going to say now Tsunade can hop and punch?
[video=youtube;8_9rn-knKhE]http://www.youtube.com/watch?v=8_9rn-knKhE[/video]
Now your saying tel port transportation is an example how fast her cells are. Bro really? Really? That is why Ay does it a few times... But what about Mei? So Mei can heal herself super fast too right? Throw that in the trash with that other simple logic.
Lasty, you say Ay could not land a single blow. He would be landing blows on his second stage level. It would not be a single blow but it would be countless blows until he opens her up.
Final lava does kill. She is blocking with what her arms? Lava melts anything Lava is that dangerous that is how the earth was created. Lava is way hotter than fire and fire took AY arm which the slug could not bring back.
When she does heal it is not super fast instant arms. It is more of screaming in pain while mei still shoots it out with her. Like I say Mei and her might be tied by she is not super better than the rest.
She is not built like that right now. If she was a car she would be a American made minivan , comfortable for the kids, great support, good for moving stuff. But compared to Totoya she is not in it for the long run, to a super sport car she does not have the speed, and to a pick-up truck barely moving weight.