A Spiderchest's body, true to its name, resembles a red treasure chest with black highlights and a black lock. It has yellow "teeth" lining the lid of the chest and three white, zig-zagging, bladed legs. The Unversed's spherical, black head is protected inside the chest. Its red eyes are set in a happy expression and the Unversed symbol adorns the top of the chest's lid. It is able to near-perfectly disguise itself as a large treasure chest, regardless of the world it is in.