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Looks like the right embossing (textured surface), so I'd guess that it's real—just aligned poorly. Fakes usually lack the embossing altogether, or use the wrong style of embossing.
These kind of errors generally don't add any kind of value. Some collectors will pay more for the novelty while others consider them flawed and would expect them for less. I'd imagine most people wouldn't have a problem with it though since the error is on the back and cards have to be played in sleeves in official matches.