Help me get these three domain powers

[The Total Package]

Hi all, so I have this character being created level 16, and I'm trying to get three domain spells I really like but not sure if it's possible. I'm a cleric of Narriseminek, I'd like to get Dazzling Flash and Draconic Barrage. I can get Dazzling Flash via Syncretism, but how do I go about getting that third domain spell (Draconic Barrage)?

[Finoan]

The closest I can come up with is a custom Oracle mystery that has Wyrmkin as one of its Related Domains.

Because that seems to be the biggest problem - finding something that has Wyrmkin as the domain.

Now, if you could get the Wyrmkin domain and Draconic Barrage via Syncretism instead, then Oracle Dedication (Flames Mystery) and Basic Mysteries -> Domain Acumen (Sun) would get you Dazzling Flash.

[The Raven Black]

I would take Splinter Faith to get Dazzling Flash (emulate your deity by staring at the sun hoping for revelations beyond sight) and Syncretism for Draconic Barrage (Uvuko feels like the best fit).

Or am I missing something ?

[The Total Package]

My God, I think you've done it?!