Who cursed poor Zeref?


I was thinking of Mard Geer, since he's said to be more powerful than Zeref.

But was it ever mentioned in canon who cursed Zeref to be immortal?




![enter image description here](https://i.stack.imgur.com/XcBYim.png)

In chapter 436, Zeref mentioned that he must have been cursed by
[Ankhseram](http://fairytail.wikia.com/wiki/Ankhseram_Black_Magic), the God of
life and death, for researching resurrection magic (R-System, Eclipse Gate,
and later Summoning Magic). One of the side-effects of this curse was that he
became immortal.

* * *

As mentioned by
[Denslat](https://anime.stackexchange.com/users/11648/denslat), this is indeed
metaphorical. At this point it is not proven whether a deity exists in the
Fairy Tail world. As far as we know, the curse was cast upon those magicians
that had messed around with incomplete versions of Grand Magic (or Black
Magic, depending on the translation). Zeref for using resurrection magic.

> Mavis for using (Fairy) Law. [FT 449](https://i.stack.imgur.com/Xo4hq.jpg),
> [FT Zero 11](https://i.stack.imgur.com/n8dRJ.png)

So whether a real deity was upset or not, the people in the Fairy Tail world,
call this curse the curse of Ankhseram, the God of life and death, regardless
of its existence.

