As you say 
Again I start gathering tons
of water chakra into my body. Once
done, I release it into the
lake just like before. Once I
have my chakra mixed with the
water in the lake, I start
manipulating my chakra to create a giant orb of water. Once
done, I manipulate it and remove
the unwanted parts so that it finally
looks like a shark. I concentrate enough so that I could maintain the intensity of my shark. As I
finish moulding it into a shark, I
make the shark jump into the air
from the water and direct it towards your clone. The shark on reaching you opens its wide mouth and bites your clone making it go poof.
Again I start gathering tons
of water chakra into my body. Once
done, I release it into the
lake just like before. Once I
have my chakra mixed with the
water in the lake, I start
manipulating my chakra to create a giant orb of water. Once
done, I manipulate it and remove
the unwanted parts so that it finally
looks like a shark. I concentrate enough so that I could maintain the intensity of my shark. As I
finish moulding it into a shark, I
make the shark jump into the air
from the water and direct it towards your clone. The shark on reaching you opens its wide mouth and bites your clone making it go poof.