I disagree with you who say the Champions League is Real Madrid League, it would sound more beautiful if you said Real Madrid is the king of the Champions League based on the trophies they have won. This is a competition, all teams that qualify for the Champions League have a chance to win the trophy, who can guarantee that this season Real Madrid will win the Champions League again.
Real Madrid performance under Ancelotti has improved dramatically, but that doesn't mean they can't be knocked out of the Champions League. Other clubs have used the transfer market to strengthen their squads, perhaps we will see a new champion this season.
It’s all the same just that I probably used an inappropriate word but i believe you should understand better. With the addition of Mbappe and some few other players i believe they are all set for the season and shouldn’t have anything more to worry about. Obviously no one can guarantee if Madrid will win it again this year but we are all speculating that they will win because of the way they are in the competition over the years, some teams are quite tough and challenging and are capable of winning the title as well and even smaller teams can be very challenging at times, look at what Dortmund did last year they almost got their hands on the title.
The competition in general will be as tough as always, I can’t wait for the season to start over again to see what changes each team has come up with.