Are essence gems persistent for now?

Since today I see that essence gems from Faerie Gobmother campaign have returned back. There are no units who able to generate them neither in my team nor AI team but these gems keeps falling and falling. :thinking:

For today there is a list of the heroic gems for each day this week


Those are potions, not wish gems. It’s part of the “community week” as previous poster says and in game news says

Those are what to expect this week. Unless you are on Nintendo Switch and then mana potion gems will be around for the 10 weeks of the campaign