A hyper-realistic depiction of a mystical void arcanist, shrouded in ethereal mist, their silhouette bathed in dramatic volumetric lighting. The scene captures the intricacies of their ornate robes, woven with shimmering cosmic patterns that dance with subtle light. Their eyes glow with an arcane allure, reflecting ancient wisdom and untold power. The environment is a mesmerizing swirl of misty tendrils, rendered with incredible detail using cutting-edge octane render technology and Unreal Engine, creating an otherworldly atmosphere that is both enchanting and foreboding.