- All values are in Australian dollars (AUD).
- Please consider your own budget and playstyle when reading this!
- Where possible, I provide conditions that make each purchase most worthwhile.
Packs appear at levels: 7, 11, 15, 19, 23, 27, 31, 34, 37, 40, 43, 46, 49, 51, 53, 55. At a certain point in the higher levels, this frequency increases to once per level, though the exact level where this change occurs is uncertain.
Credit to Silvery for observing and recording this.

This is a battlepass system. You still need to complete tasks in order to unlock the full benefits. This assumes you have completed the pass.
(Unverified) It seems each pass gives a random selection of 4 of the above.
- You need to claim the vouchers before the Pixie Pass ends.
- However, when you do claim it, the game will force you to use the voucher first before you can resume using expansion material to upgrade/expand.
