The ability to identify the enemy's vulnerable spot and hit the target without hesitating will allow your warriors to deal irrevocable damage to the enemy. Upgrading this Knowledge reduces the defense of enemy troops.
| Level | Food | Lumber | Iron | Stone | Silver | Gold | Totem | Time | Requirements | Reduced Enemy Troop Defense | Influence | Hero’s Experience |
| 1 | 16M | 10M | 10M | 10M | 1M | 275K | 100 | 14w 2d 00h 00m 00s | 1 | 300K | 130K | |
| 2 | 51.5M | 32M | 32M | 32M | 3.2M | 500K | 320 | 28w 4d 00h 00m 00s | 7 | 680K | 150K | |
| 3 | 165M | 105M | 105M | 105M | 10.5M | 915K | 1 050 | 57w 1d 00h 00m 00s> 1 Year(s) | 12 | 1.55M | 170K | |
| 4 | 525M | 330M | 330M | 330M | 33M | 1.7M | 3 300 | 114w 2d 00h 00m 00s> 2 Year(s) | 18 | 3.5M | 200K | |
| 5 | 1.7B | 1.05B | 1.05B | 1.05B | 105M | 3.15M | 10 500 | 228w 4d 00h 00m 00s> 4 Year(s) | 30 | 7.8M | 230K | |
| 2.46B | 1.53B | 1.53B | 1.53B | 152.7M | 6.54M | 15.27K | 442w 6d 00h 00m 00s> 8 Year(s) | 30 | 13.83M | 880K |
English