Unique battle techniques teach Vikings how to spend their strength wisely. This allows them to forget about fatigue even in the most exhausting battles. Upgrading this Knowledge increases your army's health during attacks against tier I warriors.
| Level | Gold | Soul Shard | Time | Requirements | Increased Troop Health During Attack Against Tier I | Influence | Hero’s Experience | ||||||||
| 1 | 570K | 10.5K | 48w 6d 00h 00m 00s | Oracle 31, Reinforcement Troop Speed II 1 | 1% | 160K | 510K | ||||||||
| 2 | 710K | 15.5K | 72w 4d 00h 00m 00s> 1 Year(s) | Oracle 31, Reinforcement Troop Speed II 1 | 2% | 355K | 780K | ||||||||
| 3 | 850K | 23K | 107w 5d 00h 00m 00s> 2 Year(s) | Oracle 32, Reinforcement Troop Speed II 2 | 3% | 800K | 1.15M | ||||||||
| 4 | 990K | 34K | 159w 6d 00h 00m 00s> 3 Year(s) | Oracle 32, Reinforcement Troop Speed II 3 | 4% | 1.85M | 1.55M | ||||||||
| 5 | 1.15M | 50K | 237w 3d 00h 00m 00s> 4 Year(s) | Oracle 33, Reinforcement Troop Speed II 4 | 5% | 4.1M | 2.1M | ||||||||
| 6 | 1.3M | 74.5K | 352w 4d 00h 00m 00s> 6 Year(s) | Oracle 33, Reinforcement Troop Speed II 4 | 6% | 9.2M | 2.7M | ||||||||
| 7 | 1.45M | 115K | 523w 4d 00h 00m 00s> 10 Year(s) | Oracle 34, Reinforcement Troop Speed II 5 | 7% | 21M | 3.5M | ||||||||
| 8 | 1.7M | 165K | 777w 3d 00h 00m 00s> 14 Year(s) | Oracle 34, Reinforcement Troop Speed II 6 | 8% | 47M | 4.45M | ||||||||
| 9 | 2.15M | 245K | 1 154w 2d 00h 00m 00s> 22 Year(s) | Oracle 35, Reinforcement Troop Speed II 7 | 9% | 110M | 5.6M | ||||||||
| 10 | 3.1M | 13.97M | 365K | 1.1M | 1 714w 1d 00h 00m 00s> 32 Year(s) | 5 148w 3d 00h 00m 00s> 98 Year(s) | Oracle 35, Reinforcement Troop Speed II 10 | 10% | 10% | 240M | 434.47M | 7M | 29.34M |
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