The Knowledge allows the training of a new type of killers – the fierce Berserkers. Seize the opportunity to strengthen your army with these bloodthirsty fighters!
| Level | Lumber | Iron | Stone | Silver | Gold | Time | Requirements | Unlock Berserkers | Influence | Hero’s Experience |
| 1 | 200K | 150K | 200K | 360K | 41.5K | 2w 1d 00h 00m 00s | -1 | 17.5K | 250K |
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