It seems that Barcelona is always lucky to bring in great players even though they are already +30 but their abilities are still very much needed. Last season Barcelona got a player like Lewandowski and some younger players and now, Barcelona got Gundogan at least in an easy way too. With a transfer like this, I personally believe that next season Barcelona can still dominate La Liga. But interestingly, whether the presence of Gundogan can make Barcelona's performance better in the Champions League, of course it will be an interesting thing to look forward to.
The truth is, Barcelona is currently facing financial difficulties in acquiring star players, which is why they are targeting free transfer players like Gundogan. In terms of quality, Gundogan has the potential to fill the void left by Busquets and even surpass his predecessor. His presence at Camp Nou is expected to enhance creativity and increase the number of goals from the midfield.
With Xavi's expert guidance, it is hoped that Gundogan's inclusion in the team will lead Barcelona to become treble winners, just as he recently achieved with Manchester City. Given his wealth of experience, Gundogan shouldn't have much trouble adapting to his new team's playing style.