The storage gets 10 slots for every expansion. The number of necessary amulets will not change after reaching the capacity of 190.
| earth amulets | water amulets | wind amulets | fire amulets | |
| <40 | free | free | free | free |
| 50 | 1 | – | – | – |
| 60 | – | 1 | – | – |
| 70 | – | 4 | 2 | 1 |
| 80 | – | 3 | 1 | 2 |
| 90 | 1 | 6 | 3 | 3 |
| 100 | 1 | 4 | 2 | 3 |
| 110 | 1 | 10 | 4 | 7 |
| 120 | 1 | 5 | 2 | 5 |
| 130 | 2 | 13 | 6 | 7 |
| 140 | 3 | 12 | 3 | 7 |
| 150 | 8 | 14 | 14 | 9 |
| 160 | ||||
| 170 | ||||
| 180 | 8 | 20 | 16 | 16 |
| 190 | 8 | 20 | 16 | 16 |
Here is the storage upgrade to capacity 150.
Image