Online tournament: The best hero.

many players choose the same castle, meaning, for example, they play Rampart against Rampart, and if one player takes the Logistician, the other player won't be able to take it! Therefore, I think that if identical castles face each other in battle, one of the players will definitely have to change their castle!

Added after 39 seconds
if, of course, they want to change their castle!