Next, I should check if there's any official content from 2021. A quick mental check: Xiaolin Showdown has a spin-off called "W.I.T.C.H.," but that's a different show. There was a Xiaolin Showdown movie in 2009, but not in 2021. Maybe the user is referring to a fan-made movie or a re-upload of old content in 2021. Alternatively, "duelo" means duel in Spanish, which is central to the show's concept. Perhaps the user is looking for a duel-related episode dubbed in Latin (Spanish or Portuguese) released or re-released in 2021.
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