Your scouts have managed to obtain information about the weak spots of the enemy siege engines. This will help your cavalry fight them more efficiently. Upgrading this Knowledge increases the offense of your cavalry against siege engines.
| Level | Gold | Soul Shard | Time | Requirements | Cavalry Offense Against Siege | Influence | Hero’s Experience |
| 1 | 135K | 26.5K | 51w 5d 00h 00m 00s | Training Limit I 1, Oracle 36 | 0,5% | 13K | 34K |
| 2 | 200K | 39K | 76w 5d 00h 00m 00s> 1 Year(s) | Training Limit I 2, Oracle 36 | 1% | 29K | 42.5K |
| 3 | 270K | 57.5K | 113w 6d 00h 00m 00s> 2 Year(s) | Training Limit I 3, Oracle 36 | 1,5% | 65.5K | 53K |
| 4 | 340K | 85.5K | 169w 1d 00h 00m 00s> 3 Year(s) | Training Limit I 4, Oracle 37 | 2% | 150K | 66K |
| 5 | 410K | 130K | 251w 1d 00h 00m 00s> 4 Year(s) | Training Limit I 5, Oracle 37 | 2,5% | 335K | 82.5K |
| 6 | 480K | 190K | 372w 6d 00h 00m 00s> 7 Year(s) | Training Limit I 6, Oracle 37 | 3% | 750K | 105K |
| 7 | 560K | 280K | 553w 5d 00h 00m 00s> 10 Year(s) | Training Limit I 7, Oracle 37 | 4% | 1.7M | 130K |
| 8 | 680K | 415K | 822w 2d 00h 00m 00s> 15 Year(s) | Training Limit I 8, Oracle 38 | 5% | 3.85M | 160K |
| 9 | 895K | 620K | 174w 3d 00h 00m 00s> 3 Year(s) | Training Limit I 9, Oracle 38 | 6,5% | 8.65M | 195K |
| 10 | 1.4M | 915K | 1 813w 1d 00h 00m 00s> 34 Year(s) | Training Limit I 10, Oracle 38 | 8% | 19.5M | 240K |
| 5.37M | 2.76M | 4 399w 00h 00m 00s> 84 Year(s) | 65% | 35.04M | 1.11M |
English