Wtf are you talking about. RS increases his speed, durability, conserve stamina, and attack power.he used it in a fight already. Will use it in this fight too cause he judges son. Show me where it stated or showed Sanji traing you clown.
All Zoro swords are magical you idiot. Zoro normally has to train them to properly control them. How did he not earn Enma. They literally took his sword in a fair exchange of the sane rank. You literally are not reading the manga. He also had to train to master it and nade it his bitch by getting his haki back. So what have we learned Zoro works for his powerup even tho the swords are fighting against him. One of his swords were even curserld and Zoro will overpowered it. Then he had to master it cause it wasn't listening. Not like Sanji where he stands there and gets it