Is it bad that I kind of want Wormy not to lose?
Yeah, no way in heck.
We've seen Bloodfeast being mentioned several times including when they came here.
That's definitely Checkov's Dinosaur.
Weren't there any classic elementals during the first book? With the Earth\Fire\Air sigil parts?
My guess, Hilga is working on something with a long casting time. Hilga is far closer to the "classic" cleric than Durkon - She uses scrying for crying out loud.
Heck, he doesn't even put points in knowledge (Religion)
I would also guess that Hilga could something something of her own (like the Giraffes) but that would be too much going on in the battle for this comic.