I have completed every single daily quest. I have completed all other quests and then they just stopped, I have only had daily quests available for the past 4 days- but I am nowhere near gaining 3rd tier prize- I only spend the 140 at a time (never the 90 or 50 option) how is it fair or reasonable to create an event where it isn't possible to collect enough purple diamonds to gain the main prize. Why did the tasks stop and only have daily tasks to complete once i reached a certain point. I will have to spend $100US or more to gain enough diamonds to spend to reach the 800 feathers i require to get last prize. This is silly and completey unreasonable and misleading
There were 86 quests on the main questline and once done the quest giver vanishes, we still had the daily quest plus any eggs we could collect from our cities. The information was all available on Gamers Gems of Knowledge the link of which has been given many times over in different posts on the forum -
https://www.gamersgemsofknowledge.com/phoenix-cult
It is possible to get the 3rd prize without spending diamonds - I got it on one of my cities, didn't spend diamonds but primarily did the 50 essence and mostly on double feather days - I think it was Killiak who said you should decide your strategy early on as the 140 essence gives the greatest chance for the daily prize but the 50 essence gives the greatest chance to win more essence to get more feathers:
50 essence - 50 essence 15% chance, 90 essence 19% chance, daily prize 7% chance
90 essence - 90 essence 11% chance, 140 esence 16% chance, daily prize 13% chance
140 essence - 140 essence 15%, 200 essence 8%, daily prize 25% chance
so whereas you would have got more daily prizes than me (at a guess) I got a lot of the 90 essences for my 50 essence cost, lots and lots of feathers on double days, and in the end on the city which got the 3rd set building I also have more than 70 various instants and 1 wishing well.