also stuck on this one - even if i manage to kill kabuto, im left with 1 ninja standing and cant make it

There is another factor at play that may be making it harder for you, the ninja exams get easier, the more people that pass them. If only a few have passed them, they will still be really strong, while many of the youtube videos have much easier fights shown. Are you able to use the old Lightning Blitz, using Darui, WB Asuma and Iruka? This team is pretty consistent at passing this level.

I did it with wind main, using Kushimaru, Sage Naruto and Gaara. Used garra's spear to weaken everyone and then killed a load of people off with Kushi resets. Then you've "just" got to kill people as SCK res's them, while while chipping him down over a few rounds.

208 is super sketchy, hardest one by far.

I had surpassed this test a week ago and Im at exam 220 the other day. I use different lineups using dodge team, burst edo deidara team and the famous naruto, gaara, iruka ninja exam team.

Did a lot of blitz also, and change mains everyother day to beat this exam. And the one I uses that beat this exam is midnight, iruka, darui and wb asuma. You just be patience with the crits. If not then retreat. Happen one time that all my mains attack all crit and kill kabuto in round 1 then resulting of passing the exam.