Arkthar, the chaotic necromancer, a harbinger of dread and uncertainty, with an aura as pervasive as a storm, sowing seeds of malevolence across realms. A colossal figure rendered in hyper-realistic detail, capturing the essence of a Yu-Gi-Oh monster. The scene is devoid of framing or blemishes, showcasing Arkthar in all his sinister glory, amidst swirling shadows and ethereal lights that emphasize his dark power, standing on a daunting landscape that echoes his influence.