lol first Madara can see through clones no matter the type, genjutsu against madara is useless plus tobirama was there also so did sasuke intentionally drag him inside too. I think sasuke needs to be physically touching madara to bind the sage chakra with the new tech hashirama gave him, by incorporating the chakra hashi gave him(now has senju dna) he could pull out all the sage chakra into his own body and bind madara. Now before yall start saying sasuke can't obtain/ handle sage mode remember he had a curse mark with senjutsu and was very skilled with it (jugo states this when they first meet, also orochimaru compliments sasuke on how he can adapt to sage chakra when he uses the senjustsu susanoo), plus with the sharingan he can properly balance the chakra ratio in his body. By doing this he gets a powerup and might evolve his eyes into the rinnegan since sage mode enhances everything about you, including your eyes. This way he can only use rinnegan in sage mode. O n naruto will get the yin kuruma.