Spoiler (mouse over to view)
Acnologia was revealed to be a dragon slayer turned actual dragon
I've had this feeling at the back of my mind. And now I want to pick all of your brains to see if I might've hit the nail on the head.Spoiler (mouse over to view)
I think that Zeref is a dragon turned human and the very dragon that taught Acnologia Dragon Slayer magic. I'm thinking he turned more human for every dragon Acnologia killed or he killed so many humans he turned into one like Zeref did dragons. The first being most likely judging by Zeref's dialogue during the Tenrou Island arc.
Any thoughts?
________________
"Religion is like a gun, It's only as good as the people holding it and it can easily take a life."
-Personal thought