A necromancer pulsing with necrotic energy, Art by Bastien Lecouffe-Deharme, power auras, sigils, tattered cloth robes, substance 3d painter, PBR textures, Physical based rendering, cinematic, hyper realism, high detail, octane render, unreal engine, 8k, Vibrant colors, Smooth gradients, High contrast, depth of field, aperture f2.8