https://gyazo.com/62eed2f5a61d78befe6de1fb2df1c44c

https://gyazo.com/3fd90d65267d95198dc205ba2fb6a6b3

https://gyazo.com/36d20c9a30c5a932fcd1c250cc6a0a69

1st Round Let the earth main get his interrupt on your water main first then you c*e AO mystery on Hashirama make sure your water clone dies as well.

2nd Round Sakura heal into Mei mystery onto Jiraiya right away Sakura with her slugs should end up killing jiraiya and hashirama

3rd round Try to mystery heal with your main as fast as possible to get rid of earth main's interrupt as well as take away the chakra so Tobirama does not use his mystery.

4th Use Ao and mei mystery on tobirama which should kill him

5th round is basically cleanup with poison and your basic attacks with mei and water main (Ao should have died by now)

Wish you all the best of luck on 120 exam!