Create a terrifying, highly detailed monster standing 3 meters tall, with glowing red eyes, cracked stone-like skin covered in dark moss, four muscular arms ending in sharp claws, and a mouth full of jagged teeth. Its back is lined with bone-like spikes, and it emits a faint, eerie green glow. The creature stands in a foggy swamp, with faint moonlight illuminating its silhouette, and its presence evokes ancient, forgotten evil.