What is cartis magnum opus?

Music has officially been out for a week now and I think enough time has passed to start talking about what his best work is. In my personal opinion I think that his magnum opus is WLR, it redefined him as an artist, made him the icon that he is and really solidified him as one of the greatest and most influential artists in the modern scope of music. This album created a whole new sound that paved the way for a whole new generation of artists