Even if they could deflect minor thunder to some extent-
How about-
Rumble!
CRACK!
Streaks of light descended and pulverized everything in its path, lighting up the world so bright, even I couldn't see with my darkness shielding me.
Skeletons were resistant to lightning and yet, even they vanished.
Some of the humans could deflect or rather shield themselves. However, what about the ones who couldn't?
Four dropped on the floor, immediately turning into skeletons.
OH? So, I won't even have to try now?
Heh.
I got the golden soul too. Speaking of souls, I could actually see the rotten soul of the thin man. Grey.
"Would you look at that, you're about as shit an individual as you look," I said.
"Monster…" the area immediately lit up again.
"Darkeen."
Which I canceled without missing a beat. He had more range, but my spell was more focused.