mind flayer, illithid, psychic powers, telepathy, mind control, tentacles, humanoid, alien creature, consequences, brain extraction, victim paralysis, arcane backlash, mental strain, glowing eyes, dark robes, underground lair, eerie atmosphere, bioluminescent fungi, damp caverns, ethereal glow, ominous presence, telekinetic force, energy drain, psychic feedback, 3/4 view, dramatic lighting, high contrast, detailed texture, Lovecraftian horror, eldritch entity.