I have two suggestions. First is the party leader gets to choose a max number of knights that get to join. (like 2-4)

Second is that depending on the leader's choice, they can choose normal party, (max of 4) and a mega party. (max of 8)

As we all know, the more knights, the stronger the monsters so this wouldn't be overpowered.

I know some of you are going to say "Why?". And to that I answer:

Lets say you have 4 friends that want to join one party with you. You obviously have to tell one of them that it is full and they can't come. Doesn't that feel bad?

Please Grey Havens. This would be great!

I understand if you can't though t would be nice. ^.^