The wisdom of valiant warriors of the past, contained in secret teachings, makes it possible to train young warriors better and faster. Upgrading this Knowledge increases warrior training speed.
| Level | Food | Lumber | Iron | Stone | Silver | Gold | Time | Requirements | Warrior Training Speed-Up | Influence | Hero’s Experience |
| 1 | 500 | 500 | 500 | 500 | 500 | 125 | 00h 05m 00s | Oracle 1 | 20 | 20 | 20K |
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