Rivethun Emissay : Glyph Domain

[Waldham]

Hello, is it possible for a Rivethun Emissary to obtain the Glyph domain with Domain Spirit feat ?

Does the creature as a scalescribe or a calligraphy wyrm qualify to obtain the glyph domain ?

What terrains does it qualify to obtain the glyph domain ? A terrain with Dolok tree ?

Thanks for your future answer.

[Dr. Frank Funkelstein]

It is not listed as an option, but as the feat states "Your GM can choose to add domains to your list of available options" you can ask your GM to do that.