Randuin's Omen is a large, circular shield with a robust and imposing presence, featuring a central ornate emblem that radiates a faint blue glow. The shield's surface is made of a dark, weathered metal with intricate engravings along its edges, depicting ancient runes and battle scenes. The rim is reinforced with a thick, silver border, giving it a sturdy and battle-ready appearance, while the back is lined with padded leather for grip and comfort.