Do you remember how Trafalgar Law can switch people’s minds/hearts/personalities?
![](http://www.opfanpage.com/wp-content/uploads/2019/06/09.png)
During Punk Hazard, two Devil Fruit users lost their bodies to someone else: Chopper and Smoker. And while Franky and Tashigi had those bodies, they also had the ability to use the devil fruit powers.
![](http://www.opfanpage.com/wp-content/uploads/2019/06/lihoiuhio.png)
Even when they were outside Law’s Room, they didn’t switch back, so it would last as long as Law wants it to, right?
![](http://www.opfanpage.com/wp-content/uploads/2019/06/qaqaq.png)
Why doesn’t Lucio switch his weak crewmates’ personality with strong devil fruit users? He hit Smoker and Sanji with it, so it shouldn’t be TOO much of a “The enemy is too strong so it wouldn’t work” problem.
![](http://www.opfanpage.com/wp-content/uploads/2019/06/qaqaq-1.png)
In this way, Law’s crewmates would get a body with a powerful devil fruit, and the enemies would get a weak body the crew can easily dispatch.
*Theory by Briaria