Everything in that event was good made, instead of buyable-points, LB was avail for the players that were about to spend a lot of gold for the leaderboard rewards. I really liked the gold sink idea (with awakening gems for 5k in store) maybe that will decrease actuall inflation. Not every event have to be with energies, we can have some rest with non-tiered events. Obviously I look forward for the goblin event that should appear soon *and for the speed sets *. Actually I hope that you are not going to change the standart, major events'es maps (like halloween, goblin, bloodgrub, that's ursoth-elondrian ofc and winter)
Keep it up and good luck!