Your telling me ultra big ball rasengan wont at least knock her unconscious, along with gamabata, gamahiro ect.
toad flatness while the boss toad take care of her.
swamp underworld while she is caught in toads throat
tactics and techs can defeat tsunade its not just frog song.
knock her unconcious?,a magatama from madara didnt slow her down,her SOH makes her immortal. And she can just dodge it,it's too big for j-man to simply change it's trajectory very quickly. Also what would happen when a chakra punch hits that rasengan,it would explode affecting them both,who do you thnk will be affected the most?
When hs j-man summoned all of them at once anyway?,he didnt against pain,each of those boss toads take a huge amount of chakra to sustain,his sm requires him to have ample chakra so as to properly balance the senjutsu chakra with his own,he cudnt even fully do it,against the rinnegan he didnt summon all 3 at once,why would he do so against tsunade?
Also,if he summons a toad,you realize one punch would kill it right?
Trapping tsunade in a toad's mouth?,she can emit chakra from her body in form of lightening to mess up it's nervous system.
A toad flattening her is very nlikely,she broke madara's susanoo with a punch,a toad's body is not stronger than that is it?,she snapped his susanoo sword in half,is bunta's sword stronger than that?.
I am pretty sure tsunade can break out of swamp with her strength:|,assuming a toad manages to actually eat her.
Also,she has katsuya who is impervious to almost any damage you can think of,she took a CT as a mini clone.
She can help by spraying acid at the toad,
summoning several toads,or boss summons at once has been seen only by pain's animal path,i am sure every shinobi seen has summoned only one boss summon per fight.
Infact,when j-man wanted to go sm,he couldnt even summon bunta,IIRC he summoned another weaker boss summon toad
why would he summon 3 toads at once,also remeber that in an actual fight,he starts in base,and needs to go sm,which means he summons 1 boss toad to hold tsunade which is a very bad idea,especially as it isnt gonna be bunta.
By the time he goes sm,he will only have 1 toad,if it survives,that would be weakened,and when tsunade goes SOH and becomes mrs immortal,i beleive she would win.