How to beat Ninja Exam 104:
WARNING: I have only tried this with Nine Tails Chakra Naruto, so if you don't have him, please try to experiment with either Sage Naruto or regular three stars or higher Naruto and his placement. His mystery still causes repulse in both versions (only one star and two stars Regular Naruto have non-repulse mysteries).
Recommended Power: 38,400 (can be a bit higher or a bit lower)
Line up:
Gaara x Fire Main
Jigokudo x Nine Tails Chakra Naruto
x x x
Talents: 3,3,4,2,1
Summon: Giant Katsuyu
Note: Not every step has to be done exactly but the most important things that must be done are interrupting Sasori, making sure the enemy's Jigokudo does not constantly revive Shikamaru or the fire main, and getting Gaara's Barrier up.
Round One: Wait for Shikamaru to use his mystery. If he uses it on Gaara, retreat. If it gets used on your main and Jigokudo doesn't heal him, retreat. Both must be able to use their mysteries. Once Shikamaru has used his mystery, use Gaara's mystery to bring up a barrier. Use your main's mystery on Shikamaru to deal a bit of round one damage. Nine Tails Chakra Naruto should initiate a combo on the Fire Main. Don't worry about Sasori at all, your main will be keeping him asleep the entire time.
Round Two: Use Naruto's Tornado Rasengan on Shikamaru. It will start a combo that should kill him. The Jigokudo on the other side will waste chakra and revive him. Now is a good time to start focusing everything on the enemy Jigokudo.
Round Three: Use Gaara's mystery on Jigokudo, this will start another combo that will either kill him or leave him close to death (between on to two rounds). If you can kill him in one more move, use your main's mystery on him.
Round Four: By now Sasori and the other fire main should be down. If you still have your main's mystery avaliable, use it on Shikamaru before he gets his mystery off. After this point, just let the standard attacks and Genjutsu Mirror Return do their job.