@Paganinisrvnge, Reus is the star player of Dortmund, pretty much all their offensive game has been built on Lewa and Reus. Alexis beat Inter, Milan and Juve with Udinese, England and Colombia with Chile and so on. And also, it takes a lot of off the ball movement to end up in the right position to score an "easy goal". Judging by that term, both Reus' goals vs Real were easy.
And who was/is the star player of Udinese/Chile? I like Alexis, and think he should stay the upcoming season, because I don't think we can acquire an upgrade atm. But his situation should be assessed next summer, depending on his progress, and availability of Reus. (all subject to Tb ofc)