A dark, cloaked rider on a pale, sickly horse, surrounded by swirling clouds of green mist. The rider's face is partially obscured by a plague doctor mask, with glowing, sinister eyes peering out. The horse's flesh appears decayed, with patches of bone visible. In one hand, the rider holds a staff with a vial of poison, leaking a noxious substance. The background is a desolate, barren landscape, dotted with withered trees and decaying bodies, all cast in a dim, eerie light, cinematic angle,