Vikings have always been adept at plundering their opponents' Towns. Nevertheless, warlords continue to suggest even more cunning tactics for capturing enemy settlements. Upgrading this Knowledge increases the offense of your troops when attacking Towns.
| Level | Gold | Soul Shard | Time | Requirements | Troop Offense When Attacking Towns | Influence | Hero’s Experience |
| 1 | 110K | 22K | 6w 1d 00h 00m 00s | Warrior Healing Speed I 1, Oracle 36 | 1% | 15K | 37.5K |
| 2 | 170K | 32.5K | 63w 6d 00h 00m 00s> 1 Year(s) | Warrior Healing Speed I 2, Oracle 36 | 2% | 33K | 47.5K |
| 3 | 225K | 48K | 94w 5d 00h 00m 00s> 1 Year(s) | Warrior Healing Speed I 3, Oracle 37 | 3% | 74.5K | 60K |
| 4 | 280K | 71K | 140w 5d 00h 00m 00s> 2 Year(s) | Warrior Healing Speed I 4, Oracle 37 | 5% | 170K | 76K |
| 5 | 340K | 110K | 208w 6d 00h 00m 00s> 4 Year(s) | Warrior Healing Speed I 5, Oracle 37 | 7% | 380K | 95.5K |
| 6 | 400K | 160K | 310w 1d 00h 00m 00s> 5 Year(s) | Warrior Healing Speed I 6, Oracle 38 | 9% | 860K | 120K |
| 7 | 465K | 235K | 460w 4d 00h 00m 00s> 8 Year(s) | Warrior Healing Speed I 7, Oracle 38 | 12% | 1.95M | 150K |
| 8 | 565K | 345K | 683w 6d 00h 00m 00s> 13 Year(s) | Warrior Healing Speed I 8, Oracle 38 | 16% | 4.4M | 190K |
| 9 | 745K | 515K | 1 015w 4d 00h 00m 00s> 19 Year(s) | Warrior Healing Speed I 9, Oracle 39 | 20% | 9.9M | 230K |
| 10 | 1.15M | 760K | 1 508w 1d 00h 00m 00s> 28 Year(s) | Warrior Healing Speed I 10, Oracle 39 | 25% | 22.5M | 285K |
| 4.45M | 2.3M | 4 492w 4d 00h 00m 00s> 86 Year(s) | 25% | 40.28M | 1.29M |
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