An infernal skeletal cat, glowing with intense purple magical energy, stands poised in a menacing yet elegant stance. Its bones are sleek and jagged, carved from dark, charred obsidian that glistens with an otherworldly sheen. Wisps of glowing purple energy swirl around its skeletal frame, pooling in its hollow eye sockets and radiating from its ribcage like a spectral flame. Its claws are elongated and razor-sharp, crackling with arcs of purple lightning, while its tail is a long, segmented bone, tipped with a glowing, rune-inscribed orb. The cat’s spine is adorned with jagged, crystalline growths that pulse with necrotic energy, and its skull is crowned with a faint, ghostly aura resembling a flickering flame. The background is a dark, desolate landscape, with cracked earth and faint, glowing runes scattered across the ground, illuminated by the cat’s eerie purple glow.