UPGRADES
| LEVEL | DEFENSE | DURABILITY | RECIPE |
| Level 0 | 20 | 750 | 9x  3x  3x  |
| Level 1 | 22 | 750 | 1x  3x 1x 1x  1x  |
| Level 2 | 23 | 750 | 1x 3x 1x |
| Level 3 | 24 | 750 | 1x 3x 1x 2x 4x |
| Level 4 | 25 | 750 | 1x 3x 1x |
| Level 5 | 26 | 750 | 1x 4x 1x 1x  |
| Level 6 | 28 | 750 | 1x 4x 1x |
| Level 7 | 29 | 750 | 1x 4x 1x 2x |
| Level 8 | 31 | 750 | 1x 4x 1x |
| Level 9 | 33 | 750 | 1x 4x 1x 3x |
| Level 10 | 35 | 750 | 1x 9x 3x 4x |