Madara: "
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" (referring to Byakugo).
Madara: "
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" (further amplified by Sage Mode).
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.
There is absolutely no basis that Tsunade can pop out new limbs. And even if she can (which is a massive, unfounded assumption in of itself), there are numerous unknowns like how much chakra regrowing an entire limb will have on her, and how long it will take to regrow said limb. The best healing feat she has is two holes in her stomach from Susano'o swords. Closing a wound isn't the same as regrowing a limb from thin air.
Only reason this worked on the samurai / Karin is because they were not targets of the technique. They were hit with the after-flames, not the full brunt of the flames (where the user focuses their eye on). When the user focuses their eye on the target, they get instantly fried just like Jiraiya's fire resistant toad stomach and Hebi Sasuke's "fake" body prior to Oral Rebirth.
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. All of your feats involve someone who wasn't the intended target of the technique, and Bee outright used a Hachibi substitution jutsu.