Only warriors who have gone through special training can repel the enemy's attack and cohesively hit the enemy's most vulnerable spot. Upgrading this Knowledge increases your army's offense during defense against tier IV warriors.
| Level | Gold | Soul Shard | Time | Requirements | Increased Troop Offense in Defense Against Tier IV | Influence | Hero’s Experience |
| 1 | 570K | 10.5K | 48w 6d 00h 00m 00s | Oracle 31, Fleetness I 1 | 0,5% | 160K | 510K |
| 2 | 710K | 15.5K | 72w 4d 00h 00m 00s> 1 Year(s) | Oracle 31, Fleetness I 1 | 1% | 355K | 780K |
| 3 | 850K | 23K | 107w 5d 00h 00m 00s> 2 Year(s) | Oracle 32, Fleetness I 2 | 1,5% | 800K | 1.15M |
| 4 | 990K | 34K | 159w 6d 00h 00m 00s> 3 Year(s) | Oracle 32, Fleetness I 3 | 2% | 1.85M | 1.55M |
| 5 | 1.15M | 50K | 237w 3d 00h 00m 00s> 4 Year(s) | Oracle 33, Fleetness I 4 | 2,5% | 4.1M | 2.1M |
| 6 | 1.3M | 74.5K | 352w 4d 00h 00m 00s> 6 Year(s) | Oracle 33, Fleetness I 4 | 3% | 9.2M | 2.7M |
| 7 | 1.45M | 115K | 523w 4d 00h 00m 00s> 10 Year(s) | Oracle 34, Fleetness I 5 | 3,5% | 21M | 3.5M |
| 8 | 1.7M | 165K | 777w 3d 00h 00m 00s> 14 Year(s) | Oracle 34, Fleetness I 6 | 4% | 47M | 4.45M |
| 9 | 2.15M | 245K | 1 154w 2d 00h 00m 00s> 22 Year(s) | Oracle 35, Fleetness I 7 | 4,5% | 110M | 5.6M |
| 10 | 3.1M | 365K | 1 714w 1d 00h 00m 00s> 32 Year(s) | Oracle 35, Fleetness I 10 | 5% | 240M | 7M |
| 13.97M | 1.1M | 5 148w 3d 00h 00m 00s> 98 Year(s) | 45% | 434.47M | 29.34M |
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