I think there should be Illager outposts scattered throughout the world that people can come together to fight. There would be a timer to join and once it started there would be a timer as well as an enemy counter. Fighting could be in AR where everyone can try to look at the same build plate but it would be safer to have it that as long as you're within the area you can put down your own build plate of the building and you would get your own illagers to fight. If you die, the total number of illagers that need to die will stay the same but they will be distributed to other players. You can jump into the timed fight any time and if you die you can go back in by: 1. Going back right away 2. Pay a certain number of rubies to heal and get back in 3. Waiting a certain cooldown which can be lessened with rubies. Every person gets a couple illagers per build plate space but another gets added after some time. Once the illagers have been fought, everyone receives the same prizes which would be exp as well as various build blocks and potentially gear like swords and iron pickaxes. The build plates would not be destroyable so no blocks can be mined. This will keep people from joining, grabbing blocks, leaving, then coming back in. These raids can be of various levels with the different type of illagers and the harder ones would include ravengers. The level would depend on the number of people that need to be there as well as the gear they are expected to have, such as iron armor or leather armor. What would be cool too is having the option to make and spawn in an iron golem to help you battle, especially when fighting ravengers. After you win, there could be a cool buff that you get that can help you gain slightly more exp for a certain time or raise your health slightly for a certain time, for other fights.