I've been figuring out pixies and how to use them. At some point, I realized that you can store them in special bottles (blue for two, pink for six) to use later and put them in storage chests and release them in the pixie cave. So, I've been sorting them. Rainbow pixies are harder to spawn.
My daily loot on the pixie deposit chest is healthy. You can always reassign your pixies to other tasks if you need more of something else.
The more you release in the pixie cave, the more cards and blessings you get. So, you can increase the number of them you can assign to a task (bound) and their efficiency (how much they can harvest every day), etc.






