What's location
does it matter since it would be turned into ocean anyway
OT : Kisame outlasts in worst scenario
Not necessarily.
He can't necessarily turn it into an ocean?
Kakashi wins scenario 2. If Kisame opts to use his Water Shockwave Kakashi can electrocute the water with his Raiton Wolf. Suiton Sharks shouldn't even be restricted seeing how Kakashi has already copied Kisame's regular sharks. Hiding like a mole has potential to troll as well.
There's only 1 scenario.
Oh wait, oops. I misread completely lmfao. Then Kakashi wins this, I thought scenario 1 only had Kamui restricted and scenario 2 was the Kisame restrictions.
He can't use earth style depending on location.
True, but I think lightning wolf along with Kakashi's own large scale Suiton's is more then enough. Kakashi has already copied Kisame's shark with ease before, not sure about any jutsu Kisame can use that Kakashi cannot copy barring the Water Shockwave. Add in Genjutsu and it's pretty much guaranteed to be in Kakashi's favour.
Completely forgot he's copied Kisame's sharks.
So can Kakashi use anything he's copied in the future?