H you mean when Madara was trusting Obito and the only way he could hurt Madz was to get him of guard? Yeah, it didn't work out well for Obito either after Madz's floating upper body neg diffed him.That didn't work the last time considering that one ripped out 2 bijuu chakra from the other.
OT: he'll have Susanoo on top of his list of vast Justus
He already has Madara's chakra and Hashirama's cells/chakra in his body.
He's strong enough, people just don't realize it.