Forty Khaaz, in the densest part of the swarm, became a single connected target the moment the first twelve had died.
I do not have to tell you that they did not survive it.
The voltage ran through their bodies' inner fluid, into the chitin of the next Khaaz, through that one's inner fluid, on and on, no power loss, the way a current runs through a pre-built wire.
Forty Khaaz dropped together as the chain reached the back of the swarm and ran out of bodies before it ran out of voltage.
Two seconds, fifty-two Khaaz dead, and there would have been more if the demons had been a bit closer together.
A single thought crossed my mind, and it was: oh.
This spell used all of my seven Primary channels, and all the secondary channels that Resonance had dug out of me, including the new channel being dug through my heart.
