User blog comment:Bluefox87/One piece 788/@comment-24850639-20150529150250

Well a lot of people are seeming to muse at the idea of him giving Luffy immortality. I personally think he will too, but not right now. It honestly makes me question Oda's intentions with the Supernovas altogether. Not counting Luffy/Zoro, Law is my favorite one. Through him, we learned more about the D. Clan, just who Doflamingo is and where he comes from, a connection to X. Drake, and that haki can be overused. He's also Luffy's partner in taking down one of the Yonko, so I also think we'll learn a lot more about Kaido due to his involvement.

As far as his ultimate purpose, I do think it's to give Luffy immortality at some point. I think the Dressrosa Arc has shown just how much Luffy has grown on him, and that he actually means something to him, beyond accomplishing this objective. I mean hell, he had already saved Luffy at Marineford, and we know based on the way he started the conversation with Luffy about taking down Kaido that it wasn't something he had pre-meditated from back then. I was very touched when he said he wanted to die by Luffy's side if he didn't make it, and the fact that he thinks he needs to "babysit" Luffy implies that he feels a personal responsiblity to manage Luffy's recklessness, just like the rest of the Strawhats. I don't think Law's gonna die for quite some time, but I def think he will. I think it'll prob happen at some point after they take down Kaido.