I believe that a wrestler's appearance should accurately reflect their character and identity. It should tell their story and remain memorable to the audience. For example, The Undertaker's costume is legendary because of his distinct style; his black suit and creepy makeup perfectly depict his "deadman" image. While consistency is relevant, the appearance ought to shift with time, especially if the wrestler's persona changes. Furthermore, bear in mind that a costume's utility is not solely determined by its appearance; it must also be comfortable enough to allow the wrestler to move freely. What else can you add?