A quick snapshotting questions

If i'm wearing something like andvarius when i snapshot, will it keep the increased item rarity after i take it off?

IIR from item is checked on kill afaik.

I'm not quite sure what afaik means

On another note, say i snapshot with immortal flesh, will that be detrimental to me since i would take it off right after?
I'd only be snapshotting it for the life, i'm assuming once i take it off, i wont have to worry about the resistances

Afaik = as far as I know

I'm not sure you understand what snapshotting is? You mean like you cast RF with Immortal Flesh and Andvarius and keep the benefits of said items?

Also, it's removed in next major patch so I wouldn't stress about it too much.