It's better not to offer such a tournament to just one clan; it's better to write something like: "The clan is ready to battle 3v3 in Heroes 3 online against any clan that is willing to accept the challenge."
It's better not to offer such a tournament to just one clan; it's better to write something like: "The clan is ready to battle 3v3 in Heroes 3 online against any clan that is willing to accept the challenge."