So as I said below, Zeref does have an ability to kill the spirits; in fact, it's what he's best known for in the series. There's just one problem: It's extremely lethal and difficult to control.

The last time it did, it left visible damage in Fayren in the form of swathes of the forest dying, which was seized upon by the Hands of Decay as proof that magic is inherently dangerous. I'm open to having it happen again, but for obvious reasons, I need to do it in a way that doesn't put other characters at risk unless their players are okay with it.

For that reason, I was considering having Zeref try to lure spirits away from others before letting loose. If you'd like your character to be present or witness this, I personally would love it; I just need to ask for permissions first.

Looking forward to this event and to potential plots! :)