Sealed Universe
"Now, I think that you should tell me about exactly what will the disciples need to do."
Yale didn't think that they would battle against each other because that was too straightforward, and the strength in something like a tournament wouldn't show how well taught the disciples were.
"They will need to explore a certain universe. It is sealed so that no member of the Council of Gods can enter without authorization, and it is highly possible that it is an important place for our enemies. The disciples will need to gather information about that universe. Those who contribute the most to the future war with their actions there will be awarded more points, and the ranking will be decided based on those points."
The punctuation method was quite shady, but that was obviously the aim of the one who purposed it.
A method like that was better to alter the rankings at will without being too obvious than something like a tournament.