Tobi is the host of the ten tails
Has 10,000 white zetsu's as a personal army
Can summon the Gedo Statue
Can use his 6 jinchuriki, but they cannot transform into the beasts.
JLA and Avengers have full knowledge of Tobi and have 24 hours to work together for prep
No speedblitz, but characters can still move very fast
Battle takes place in an unpopulated Manhattan
Fight to the death