Precise tactics and sharp blades guarantee victory on the battlefield! Upgrading this Knowledge increases troops' offensive efficiency when attacking the enemy.
| Level | Gold | Soul Shard | Time | Requirements | Troop Offense Increase During Offense | Influence | Hero’s Experience |
| 1 | 685K | 12K | 91w 6d 00h 00m 00s> 1 Year(s) | Oracle 31, Mead Hall Capacity I 1 | 1% | 200K | 640K |
| 2 | 855K | 17.5K | 136w 3d 00h 00m 00s> 2 Year(s) | Oracle 31, Mead Hall Capacity I 1 | 2% | 445K | 970K |
| 3 | 1.05M | 25.5K | 202w 4d 00h 00m 00s> 3 Year(s) | Oracle 32, Mead Hall Capacity I 2 | 3% | 1M | 1.4M |
| 4 | 1.2M | 38K | 300w 5d 00h 00m 00s> 5 Year(s) | Oracle 32, Mead Hall Capacity I 3 | 5% | 2.3M | 1.95M |
| 5 | 1.4M | 56.5K | 446w 4d 00h 00m 00s> 8 Year(s) | Oracle 33, Mead Hall Capacity I 4 | 7% | 5.1M | 2.6M |
| 6 | 1.55M | 83.5K | 94w 5d 00h 00m 00s> 1 Year(s) | Oracle 33, Mead Hall Capacity I 4 | 10% | 11.5M | 3.4M |
| 7 | 1.75M | 125K | 984w 4d 00h 00m 00s> 18 Year(s) | Oracle 34, Mead Hall Capacity I 5 | 13% | 26M | 4.4M |
| 8 | 2.05M | 185K | 1 462w 1d 00h 00m 00s> 28 Year(s) | Oracle 34, Mead Hall Capacity I 6 | 16% | 59M | 5.6M |
| 9 | 2.55M | 275K | 2 171w 2d 00h 00m 00s> 41 Year(s) | Oracle 35, Mead Hall Capacity I 7 | 20% | 135M | 7M |
| 10 | 3.75M | 410K | 3 224w 2d 00h 00m 00s> 61 Year(s) | Oracle 35, Mead Hall Capacity I 10 | 25% | 300M | 8.75M |
| 16.84M | 1.23M | 9 115w 1d 00h 00m 00s> 174 Year(s) | 25% | 540.55M | 36.71M |
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