User blog:Staw-Hat Luffy/How strong is Z?

I'm very curious about Z's powers.We already know that he was a former marine admiral and that he is the strongest enemy the strawhats have faced.But exactly how much stronger is than the other main villains,like Crocodile,Moria or Lucci.I just saw a new trailer where he effortlesly defeats Kizaru and i got pretty excited because there aren't many people stronger than kizaru.I want your opinion about his true strenght.Could he be a devil fruit user or maybe have another ability?I also want your opinion about dyna stone.What kind of power has it got and what kind of power does it give to Z?