Ninja Exam level 85 Lightning Main Kimimaro*4, Guy*4, and Tsunade*3
Strategy Round One: Use your Main's Mastery skill.
Round Two: Use Guy's Mastery skill to interrupt and initiate a Combo on Orochimaru ASAP when the round begins.
Round Three: Use Kimimaro's Mastery skill to initiate a Combo on Orochimaru as well as to Leech some Life back at the same time. By the end of this round you will be fighting Manda.
Manda Round Four and Beyond: Use your Main's Mastery skill here and wait to use Tsunade's until after Manda chomps at your team. From this point be sure to use Tsunade's Mastery skill as soon as it comes off cooldown. This helps to utilize her heal on your team forcefully to keep them in good shape.
Use Guy to interrupt Manda's tail swipe and Manda will swallow your team. From here on, use your Mastery skills to Leech yourself as much Life to survive as possible. This will sustain you for the final push.
Final Notes: This is the first strategy I posted that I really don't have too much to say in, lol. However...man does Lightning have this fight super easy. Defeated this on first attempt. In any case, let's go over stats of the ninjas used and will end there. Hope this helps anyone stuck on this Exam and happy hunting!