Sasuke Can Use SM

[Legendary Saiyan]

i didnt say he had a sm i said his body is capable of using it which is why orochimaru wanted him to use DSM

DSM was stolen by kabuto

Kabuto also stole countless DNA in order to use DSM

but why bother..

Well Sasuke does have some Hashirama DNA but it wouldn't last long since he's an Uchiha and not some Senju or Uzumaki. If he has Naruto's DNA, then yeah it would last longer.