Crucio

"At once, the spider's legs bent in upon its body; it rolled over and began to twitch horribly, rocking from side to side. No sound came from it, but Harry was sure that if it could have given voice, it would have been screaming. Moody did not remove his wand, and the spider started to shudder and jerk more violently."

Taking a break from subtle. I'm not quite happy how it turned out, something's off about the textures, I think.
With thanks to the great artists who made these amazing stock resources:
Credits
~M47R1X: Severus.
*redheadstock: Lightning Brushes
~LetzteSchatten-stock: Voldemort.