- Kisame would win scenario one if he can pull out the Dome especially.
- Scenario 2 is however different. Naruto has Kage level clones that can occupy Kisame, he has toads that use senjutsu attacks which is bad for Kisame and Naruto can actually summon powerful SM clones
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in the mix of his Tajลซ Kage Bunshin that can utilize his KCM
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which Kisame would struggle to eliminate as he'll have to absorb the Senjutsu contained in their attacks(That's the SM clones attacks). At the end of the day, Naruto can use clones to divert Kisame's attention if he uses the Dome e.g swimming in different directions. He has toads that can add their senjutsu attacks along with clones and finally, he has Ma and Pa that can paralyze Kisame. They can also prepare their special genjutsu that would put an end to this fight. Add the fact that multiple attacks can be thrown at Kisame making it hard for him to absorb all at once since it's a gradual process
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when you speak of the amount of powerful attacks here including the Senjutsu ones. Naruto takes this fight. There's nothing else I can think of.