After some careful consideration I have decided Abylus should venerate Irori. His following is more individualistic and focuses largely on how to make yourself better, which is what she is trying to do with alchemy and by assimilating traits so it ends up fitting pretty nicely. Plus all her kind does is learn stuff about the surface, so it stands to reason they'd learn religions too and have some of their kind adopt a few of them. With that, I think I have now covered all the bases with my character! (I hope)