I'm to lazy to send screenshots so i'll just type the formation.
X X Fire
Shikamaru Asuma Naruto
X X X
My main's level 53, uses feather illusion as his standard,celestial prison as hise chase,genjutsu mirror as his passive and the seal jutsu as his mystery.
The idea is that Fire is in the top row alone to sleep the enemy 1st without anyone waking him up (rendering the opposite enemy useless). Also so he c*e his mystery before anyone else in the fight and interrupt the enemy's ninjutsu (very useful against lightning).
You need naruto since every normal attack of his guarantees a low float (combo) and his mystery causes repulse which combos making shikamaru immobalize one enemy every combo, Rasen shuricken also deals a tremendous amount of damage.
Asuma's mystery also guarantees a repulse (again, doing an immobalize combo), not to mention asuma's standard attack has a chance of repulse which does an immobalize combo. Not to mention asuma's mystery takes no chakra if you're above 70 chakra (if you're above 80 chakra naruto must summon 2 clones so they synergize)
Shikamaru is obviously needed for his special and his combo.
This team has done wonders for me so far. However, there are a few set backs to this team:
1.It doesn't do all that damage aside from asuma's mystery and rasen shuricken.
2. It's hard to win against clones.
3. It's a little challenging against healers. It's a long battle, since they heal and you don't do much damage, but they won't be able to attack as much either. Using fire's mystery then using shikamaru's mystery on the same guy makes shikamru launch his string lighter move, which does a nice damage and burns the enemy (preventing healing).
Sorry for the long text, but i wanted to explain this combo instead of letting the ppl getting the characters only to c it's not their playstyle.