Star Challenge - Collect Now
This Star Challenge started for me tonight, you have to water a set amount for each card and there are 25 in total. It was alot of water! Well over 1000 probably. But you win quite alot of water for each card as you get them, as well as some coupons.
I collected them all tonight, and it says the event starts in 11 days. So you have until then to collect them, you don't have to collect them all at once. I'm not sure if they have done this before in the past? I guess we will see what happens in 11 days.