well, in survival trial you can bring 12 ninja including your main SO thats 3 formation;here what i use :-

interrupt+poison(ignite) team
kankuro(gnw) - guy - neji(normal ver/mystery cooldown is 2 so yup)
sakura - x - x
x - x - x

main team (shield+tobi killer move+undead sidekick)
x - x - orochimaru
tsunade - tobi - main
x - x - x
Tips, use skill that cause knockdown to trigger tobi chase, and summon that chase repulse

clone team (for the stall, time out style for level 12)
x - x - x
naruto - kabuto - x
kakashi - sai - x

feel free to modify each team, the core is what its 'theme' aka debuff,clone or pure carnage ;p