Done all bingo that gave stones, skipped few of other bingo.
270/270 ancient chests and nearly 180/200 to get the epic one.
Skipped 2 or 3 resets when i had to flight for 8 hours

Was a really unlucky event but also challenging.
Had the rare dragon already.
Quick comparison for the double dices:
Plant: 316.000 stones used
Light: 319.000 stones used
Water: 321.000 stones used
Metal: numbers were different and not comparable with the latest events
As usual, only shrine bought with money.