Zabuza beheaded someone using his mouth.
Minato was cutting juubi branches with no arms.
You’re overestimating their durability.
I f*cking know. I was being facetious. Obviously cutting someone's head off with what's essentially a weaponized garden tool in a world where you can create a giant tiger shaped blast of air that hits like a nuke if you just punch what's in front of you really,
really hard is not that farfetched. But neither is healing from decapitation, which I actually think Sakura could do provided she managed to summon Katsuyu beforehand to help her.
