Vipul

What if Monkey D Dragon have that fruit? His name is Dragon itself also world fears him. He is the most wanted criminal alive. Also he summoned rain and lightning storm to save luffy. At some point this mythical creatures have the power to bring such storms and destruction. Even smoker didn't dare to fight him. We've never seen dragon in action yet so there's a possibility. Also black bears knows it that's why he raised dragons base.