I am confused by this revival, I was not around the 1st time this ran thru when it was a star event. Is this still a star event or collection only? Because I already have 24 stars. which would have unlocked Aria at lowest cost and get you sealed Dorania. I am wondering if I have to worry about actually buying the units from this event or just having buy to get the time fairy for the upgrade, in the 2nd half?