This idea spawned in global chat, and it doesn't seem half bad, however it might need to be restricted, such as users with fly are denied access or even allowed if some prefer. There should be an event where all the users online team up to kill the enderdragon/wither. This is all I have now, so, if you have anything to add put it here
This This would be cool but it's awfully vague. What if we made separate arenas of some sort, spawned in one enderdragon each, and then teams of 1-5 would get to kill the dragon. Teams only get one chance and the reward is whatever they fish out of the dragon's carcas.
If this were done it would have to be somewhere where it could not do alot of damage, I have spawned enderdragons in survival and they tear apart everything they touch.
I suppose, I think creepers are turned off except for player damage. Also ghasts as well in the nether.