I am late submit this, but it's all right
Name: MTarena
Type: Team Survival (map reset every round)
Public: Member and donator (serious player with team work)
Generator: limited islands (example 13 islands)
Description: Idea very simple. Once join, a member will be auto assign into a clan for balancing number of player. Probably divide into 3 clan (A,B,C). Each clan has a safe zone. So the team should be very effectively work together mining, use the resource wisely, time planning for a strike, build trap, fortress, arrow trap, lava trap, try online as much as possible to attack other clan and conquer all islands. In the meanwhile, also need to prevent enderman grifting the build.
Other notes: Need to have new plugin such as capture the flag = control the island. All island can be build by all clans members.