If I DO know that Lava won't repeat again, then my 9,000 hours time booster will help me to gain enough Lava Egg for my new city plan.Beta is not supposed to be one giant spoiler for us. I think that if Inno could have beta server that doesn’t leak all the info, they would be glad. I also have a beta city and obviously I play there without event spoilers. ;-)
Anyway, in my opinion the fact that Inno put the only specialized mana building (in a long long time) to the first and only first day of the event is bad by itself. It would be equally bad if they did it already on beta. Obviously we would have advantage of being warned on live servers, but that’s not the point.
whatever... it happened... let's see if the last prize will change to Lave Egg or Not.
otherwise, the last prize is also a mana building, 1,441 mana per tile per day.
much lower than Lave Egg's 2,125 mana per tile per day, and most important... the size 3*4 not suitable for my city