Arkthar the chaos necromancer, a harbinger of fear and discord, his presence as pervasive as the wind scattering seeds of malevolence, depicted on a colossal scale with intricate detail, hyper-realistic textures in the style of a Yu-Gi-Oh monster, emanating dark power and enigmatic energy, surrounded by an aura of swirling shadows and ethereal mist, eyes glowing with unholy light, hands crackling with necrotic energy, cloak billowing as if alive, set against a backdrop of a stormy, otherworldly landscape where chaos reigns supreme.