Arkthar the Chaos Necromancer, master of shadows and harbinger of dread, unleashing torrents of fear and discord like a tempest scattering seeds of darkness, crafted in a hyper-realistic and intricately detailed style reminiscent of a colossal Yu-Gi-Oh! monster, inspired by the vastness of a nightmarish landscape. With an aura of palpable menace, Arkthar towers over realms, his skeletal form adorned with arcane runes that shimmer ominously, eyes ablaze with violet malevolence. His robes, a swirling vortex of midnight and crimson, cascade like a maelstrom, consuming light. His skeletal hands grasp ethereal chains tethered to spirits of forgotten realms, spreading chaos with an elegance terrifying yet mesmerizing.