The Oculus is a legendary orb that exudes an eerie, pulsating glow, with a dark, swirling core encased in a gilded metallic frame. The frame is intricately engraved with arcane runes and symbols, suggesting its immense magical power. The orb's surface is smooth yet slightly translucent, allowing glimpses of the chaotic energy contained within, while the metal frame features a weathered, ancient finish with subtle battle scars.