When you create a game in Classic mode, it’s possible that it was either started by you or by your opponent. If the game was created by your opponent, it’s also possible that they already have characters that they acquired during their first turn.
Either way, it will not be possible to win more than three characters during the first round. This way, both players will have an equal opportunity to begin the game.
Keep in mind that you will also be able to steal characters from your opponent throughout the match. We invite you to visit the article, How to steal characters from your opponent?, to find out how to do this.