As far as I know trifecta is a combined word between 'three' and 'perfect'. Quote:
The number three symbolizes a harmony that includes and synthesizes two opposites. The unity symbolized by the number three isn’t accomplished by getting rid of number two, the entity that caused the discord, and reverting to the unity symbolized by number one. Rather, three merges the two to create a new entity, one that harmoniously includes both opposites. On its own, Entity A leaves no room for Entity B, and Entity B does not allow for the existence of Entity A. Entity C demonstrates how A and B really are compatible, and even complementary. Bringing together two opposites (A and B requires the introduction of an entity or common goal (C) that is greater than both of them.
And the 'sparkle':
“Almost done.” Zaidu flipped another switch and the handle disappeared. After shaking the cylinder a few times, he unscrewed the lid and showed them the inside—a thin layer of glittering dust. Then he hurled it into the sky, where a gust of wind took the sparkling cloud, spread it over the night sky, and then quickly diluted what was left of Lamashtu.
I have to admit originally 'sparkle' was meant as a quip, vampires sparkle--well, not mine, but then I decided I needed some more 'sparkle' and wrote the aforementioned part.
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