Strong armor and tough steel are the main helpers of a brave and stalwart warrior capable defeating even the most powerful enemies! Upgrading this Knowledge increases the equipment crafting speed in the Forge.
| Level | Food | Lumber | Iron | Stone | Silver | Gold | Time | Requirements | Equipment Crafting Speed | Influence | Hero’s Experience |
| 1 | 4.5M | 4.5M | 4.5M | 4.5M | 4.5M | 96.5K | 5w 00h 00m 00s | Oracle 18 | 1 | 300K | 130K |
| 2 | 6.65M | 6.65M | 6.65M | 6.65M | 7.5M | 130K | 7w 2d 00h 00m 00s | Oracle 18 | 2 | 500K | 155K |
| 3 | 9.75M | 9.75M | 9.75M | 9.75M | 12.5M | 170K | 10w 4d 00h 00m 00s | Oracle 19 | 3 | 835K | 180K |
| 4 | 14.5M | 14.5M | 14.5M | 14.5M | 21M | 230K | 15w 3d 00h 00m 00s | Oracle 19 | 6 | 1.4M | 205K |
| 5 | 21M | 21M | 21M | 21M | 34.5M | 310K | 22w 3d 00h 00m 00s | Oracle 20 | 9 | 2.35M | 230K |
| 6 | 31M | 31M | 31M | 31M | 57.5M | 420K | 32w 5d 00h 00m 00s | Oracle 20 | 14 | 3.85M | 260K |
| 7 | 45.5M | 45.5M | 45.5M | 45.5M | 95M | 570K | 47w 4d 00h 00m 00s | Oracle 21 | 21 | 6.4M | 295K |
| 8 | 66.5M | 66.5M | 66.5M | 66.5M | 160M | 785K | 69w 2d 00h 00m 00s> 1 Year(s) | Oracle 21 | 29 | 11M | 330K |
| 9 | 97.5M | 97.5M | 97.5M | 97.5M | 265M | 1.1M | 100w 6d 00h 00m 00s> 1 Year(s) | Oracle 22 | 38 | 18M | 365K |
| 10 | 145M | 145M | 145M | 145M | 440M | 1.5M | 147w 00h 00m 00s> 2 Year(s) | Oracle 22 | 50 | 29.5M | 410K |
| 441.9M | 441.9M | 441.9M | 441.9M | 1.1B | 5.31M | 458w 1d 00h 00m 00s> 8 Year(s) | 50 | 74.14M | 2.56M |
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