How do I create a new tournament?

The first player has an advantage because it's their first day, while the second player is already on their 7th day, but this was fixed by prohibiting the first player from attacking the second player with units born on that day... And the second player has the advantage of seeing the movement of the computer-controlled heroes during the turn transition, but we play without computer opponents. So, ask any online player on the forum, and they will tell you that it absolutely doesn't matter who goes first or second!