Chances are the Yabbit was baited. a lot of meat can be called Wagyu it's not particularly uncommon it's just "higher grade" then normal Not all Wagyu is the 1000 dollar shit (despite what some places will claim) SPECIFICALLY you want beef that comes from one of the 4 following cows Japenese Black Japenese Red Japenese Polled or Japenese Shorthorn and again note just because the cow is the same does not make it Wagyu (some people buy injured or older milk cows and try to pass it off as Wagyu from beef cows)