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The shaft of Earthshaker has a textured, dark brown color, with brass edges. The teeth are made of two pick-like points, with two hammer-like protrusions on the opposite side. The guard is an off-blue color, and seems to be crafted from two Omega insignias (Ω). The pommel is a dark blue cone. The Keychain token is a reddish rock fragment with brass armor-like plating.
The Keyblade's name and Keychain reflect Terra's name, which means "earth" in Latin. Its name is also shared with one of Simba's abilities.