SB Kurenai is good too

With SB Kurenai, play with shark bomb crit and neurotoxin.

Kurenai helps Roshi survivability at round 1 also. My Kurenai does at least 6000 hp and 8000 shield, it's pretty big actually.

I've also tried.

Roshi, Kimimaro, Water, Sailor. Super duper tanky front line.

If u can survive round 1-2 you'd probably win.