Your smiths have been experimenting with new alloys and now your warriors’ weapons are better at piercing enemy armor! Upgrading this Knowledge reduces enemy defense.
| Level | Ale | Timber | Plates | Thoriars | Scrolls | Time | Requirements | Reduced Enemy Troop Defense | Influence | |
| 1 | 1K | 600 | 800 | 600 | 500 | 2w 4d 00h 00m 00s | 4 | 35M | ||
| 2 | 1.4K | 820 | 1.1K | 820 | 680 | 3w 2d 00h 00m 00s | 1 | 35.5M | ||
| 3 | 1.9K | 1.15K | 1.55K | 1.15K | 935 | 4w 3d 00h 00m 00s | 1st, | >6 | 36M | | |
| 4 | 2.7K | 1.65K | 2.2K | 1.65K | 1 350 | 6w 1d 00h 00m 00s | 2nd, | >2nd | 36.5M | | |
| 5 | 3.95K | 2.35K | 3.15K | 2.35K | 1 900 | 8w 6d 00h 00m 00s | 2nd, | >8 | 36.5M | | |
| 6 | 5.85K | 3.5K | 4.7K | 3.5K | 2 800 | 13w 2d 00h 00m 00s | 3rd, | >7 | 37M | | |
| 7 | 8.9K | 5.35K | 7.1K | 5.35K | 4 150 | 20w 5d 12h 00m 00s | 4, | >9 | 37.5M | | |
| 8 | 14K | 8.3K | 11.5K | 8.3K | 6 350 | 33w 6d 12h 00m 00s | 6, | >5 | 38M | | |
| 9 | 22K | 13.5K | 18K | 13.5K | 9 850 | 57w 4d 12h 00m 00s> 1 Year(s) | 8, | >5 | 38M | | |
| 10 | 36K | 21.5K | 29K | 21.5K | 16 000 | 101w 6d 00h 00m 00s> 1 Year(s) | 10 | 38.5M | ||
| 97.7K | 58.72K | 79.1K | 58.72K | 44.52K | 252w 5d 12h 00m 00s> 4 Year(s) | 10 | 9 | 368.5M |
English