User blog comment:Perchan/Gods Allowed/@comment-4080028-20150531052825

After some careful reading both from the blog and from the comments below, I understand you already said teaching someone God Slayer magic isn't acceptable yet (until further information makes itself available, if it ever does,) but seeing as I was gunning for Phos being a goddess and Gil being a God Slayer in the first place, does this mean I could change his slayer magic to God Slayer if and when I meet the requirements to make a god? (Also if and when canon discusses the idea of gods teaching God Slayer magic.)

I doubt I'll ever go through with it, seeing as roots are being firmly planted for Gil and company right now, but I still like the idea of having the option. And so the simple question is this: Would I be able to change a Compact Regressed dragon to a god, and a Dragon Slayer to a God Slayer? Or are all deals final?