A tall, dark fantasy villain made of iridescent stone and sinew, with horns, mask-like face, glowing chest crystal, clawed hands, and tendril cloak, in a dark setting.

"The villain stands tall at nearly 9 feet, their body a strange, shifting blend of smooth, iridescent stone and flexible dark sinew, almost like living obsidian. Their limbs are long and thin, covered in jagged, blackened runes that pulse with an eerie, violet glow. Their face is a smooth mask, with no eyes or mouth—just a faint, shifting outline that distorts as if reality itself is unsure of its shape. Where their heart should be, a cracked, dimly glowing shard of crystal pulses faintly in their chest, slowly consuming their body from the inside out. Their hands end in sharp, metallic claws that appear almost organic in their formation, curling into unnatural shapes. Behind them, a long, flowing cloak made of thin, web-like tendrils seems to shimmer and vibrate with hidden energy." See more