We started with 300 coins. We can collect 800 coins every 8 hours. That will be in total 12300 coins. Collection times are explained at the bottom.
Dragons:
Rainwater #939 needs 570 coins.
Equilibrium #996 needs 1570 coins.
Nitrogen #768 needs 6140 coins.
Raino #940 needs 13590 coins.
Hebe #997 needs 23890 coins.
Rainwater is the only dragon we can skip. That will save 300 coins.

Collection times:
Open the event window. In the lower left corner you see the timer. It started with ...days,23hours,59minutes (on phone it doesnt show minutes).
It will count down to 00d,00h,00min.
You have three time windows of 8 hours every day to collect 800 coins.
Ignore the days, just check hours and minutes of the timer.
These are the time windows to collect the coins:
23h59min-16h00min,
15h59min-08h00min,
07h59min-00h00min.
You have 8 hours to collect the full amount of coins. After that time a new time window will start for collecting the next 800 coins. So it is possible to get ready with collecting 800 coins ten minutes before a time window ends and then after ten minutes collect again 800 coins because the next time window started. Just bring the time the timer shows in relation to the time your clock shows and you have the times for your timezone. I hope this is helpful.

I have claimed Equibrillium and Rainwater, and im on my way to Nitrogen. As I can’t get Raino, i will collect all the Gold and Diamond Chests on the Grid.

I was hoping that I could get Raino, but as I suspected it's out of reach without spending money which I won't do. I have collected Rainwater & Equilibrium. I already have Nitrogen so I will just collect whatever goodies I can.

While Raino's needed for both the Legendary Hero collection and the upcoming Elusive breeding event. Classy.

Nitrogen is my stopping point, I might actually get some rest before the Christmas season truly starts.

So we can't get all the dragons without soending real money in here?

@safinaneo said in Divination Island:

So we can't get all the dragons without soending real money in here?

It has been many years since this was possible for most events over 3 days. We have had a few where it was possible but 90-95% are not possible to complete without cash or gems.

I would have preferred if Nitrogen and Raino were swapped, but that's just me.

@Arranos Most players would think that, but I wouldn’t mind. I don’t have either. I didn’t get Nitrogen in Fire and Ice Island because I accidentally missed a few pools.

Cannot play on my Mac. After I open 2 chests I get the pop up window that says "Lost connection to server.' The game automatically refreshes. After everything reloads goes right back to doing the same thing. I use Chrome but have tried Safari and get the same results. Have deleted cookies, empty the cache etc. Nothing works. Have gotten more than 5000 grid coins.

@melanie-knaut-stanley If you can use an emulator like BlueStacks, MeMu or No try to play it that way.