Well their first event is in, killing the mushrooms (or Dilbooms as they call it).

20k Dilboom for max rewards in 2 days and a bit.


Normal Crystalized Lake has 187 of them.

so 20k/187 = 106 runs at 5 energy each -> 535 energy in total. That's a bit more then 44 hours of energy regen. So it's doable, although quite grindy.


Also they fixed the amount of shards you need for a hero summon back to 20 shards.