So, we now seem to be entering the situation as discussed above. Team A has slightly more cards, while team B has fewer cards but a potentially unbeatable deck.
Option 1: 1 match to determine winner, team B not only improves their odds, but are likely to win with the unbeatable deck
Option 2: play 2+ matches, and team A has the advantage given their larger card pool. Even if team B has an unbeatable deck, the other match would be up for grabs giving both teams a reasonable chance.
What do people prefer in this scenario? Should one team having an OP deck have any bearing on the decision?