The UEFA Super Cup is a tournament organized by the Union of European Football Associations, in which the champions of the two most important tournaments in Europe compete. It is the match in which those who win the Champions League and those who remain with the Europa League face each other. 
A single match is played in a neutral stadium and it is usually in the month of August, before the start of local competitions in Europe. Spain is the most successful country since Barcelona and Real Madrid are the top winners of this championship, along with the Italian team A.C. Milan. 
You can get your tickets for the UEFA Super Cup at Football Host and I recommend you consult for the complete experience together with a fan of one of the finalist teams, who will teach you how to support their team in this wonderful match of the best of football.