If the "Copy" button is grayed out, the game is likely protected. You will need a homebrew-enabled Wii to bypass this.
Here’s a ready-to-post guide for forums, Reddit, or a gaming blog about moving save data for WWE ’13 on the Wii to a portable setup (like USB or SD card): wwe+13+wii+save+data+portable
methods to bypass copy-protected save files, or are you looking for a pre-completed save file to download? How to Copy Save Data to an SD Card - Nintendo Support If the "Copy" button is grayed out, the
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