Guild, clan, group... It's all basically the same thing. I'd personally go for clan since guilds are on hypixel and group sounds horrible, but that doesn't really matter anyways.
So I think the idea is that one person create the clan, invites people, those people can join. The leader can choose their clan to be open (everyone can join) or closed (only invited people can join).
There should be weekly clan challenges, such as "With 200 skywars games as a clan." Idk if this is too much or too little, it's just an example. So in that case every time a clan member wins a skywars game, this gets added to the clan challenge, until it is completed. Clan challenges consist of the same type of challenges as the daily challenges, you know, the usual stuff. Up to 10 clan challenges can be completed every week. Clan challenge rewards are points, experience, cubelets, etc.
You can only change clan weekly or biweekly, as farming points would be really easy by changing clan every day.
New commands:
/c create <clan name> (creates clan)
/c open (opens clan for everyone to join)
/c close (only invited people can join)
/c invite <player> (invites players)
/c join <clan name> (joins a clan when invited or an open clan)
/c info (shows info about your current clan)
/c set owner <player> (changes clan ownership to another clan member)
/p clan (sends a party invite to all online clan members, makes playing with clan easier)
THOUGHTS/OPINIONS?