I'm trying to have every EX primals on farm as well as turns 1-7.

I'm quite happy with most of them except the following few-

Garuda, Ramuh, and Rafflesia.

How much of their damage is physical?

So with Garuda it would be things like her cleave, adds' attacks and stuff;

Ramuh, I don't know if anything other than his auto is physical;

And Raffy, on its leafstorm, spit amongst others.

Yes parry doesn't scale well but I like seeing it.