Junior Beacon type
Many Beacons are being wasted. Maybe you could create some junior beacons at level 3 which can't be built by teams who hold 3 or more level 5's beacon. They could create limited Essence as well. It would give the lower teams something to work toward, and also make them more competitive.
Also, it can't be destroyed by any member of the team who already holds 3 or more level 5's beacon. However, free (balur's) beacon can be captured by all teams for the beacon's contest.