Sorrina Westyr - A Crunchy Lore Question

[liamfisher]

So...I just noted in _Adventurer's Guide_ that Master of Spells Sorrina Westyr is statted as 'Cleric of Nethys 10'.  Wow.  Did not see that coming.

For ease of discussion, here are some vitals on Nethys crunch:

Domains
Destruction, Knowledge, Magic, Protection, Rune
Subdomains
Arcane, Catastrophe, Divine, Defense, Education, Thought, Wards 

So, in this context, I'd entertain comments from the peanut gallery as to exactly what the heck was going on mechanically in the following vignette from 8-00, The Cosmic Captive:

From further in, a terrible draconic roar accompanies the appearance of a flight of crystalline dragons sweeping out from the lip of a crater.

“Secure the gate! Do not let any of them through!” Westyr shouts as she sends a lance of swirling black and white energy into one of the wyrms, sending it careening end over end as the forces meet.

Uhm, they call it out in the scenario you find her.