While languishing in Helheim, Vikings yearned for battle. Now every joint attack is like a celebration. Consumed by rage, these warriors fight with twice the zeal. Upgrading this Knowledge increases the offense of your tier VIII warriors during an attack.
| Level | Gold | Soul Shard | Time | Requirements | Tier VIII Warrior Offense During Attack | Influence | Hero’s Experience | ||||||||
| 1 | 115K | 22.5K | 44w 6d 00h 00m 00s | Troop Offense II 1, Oracle 36 | 1% | 15.5K | 41K | ||||||||
| 2 | 175K | 33.5K | 66w 4d 00h 00m 00s> 1 Year(s) | Troop Offense II 2, Oracle 36 | 4% | 35K | 51K | ||||||||
| 3 | 235K | 49.5K | 98w 5d 00h 00m 00s> 1 Year(s) | Troop Offense II 3, Oracle 37 | 8% | 79K | 64K | ||||||||
| 4 | 295K | 73.5K | 146w 4d 00h 00m 00s> 2 Year(s) | Troop Offense II 4, Oracle 37 | 12% | 180K | 80K | ||||||||
| 5 | 350K | 110K | 217w 5d 00h 00m 00s> 4 Year(s) | Troop Offense II 5, Oracle 38 | 16% | 405K | 99.5K | ||||||||
| 6 | 415K | 165K | 323w 1d 00h 00m 00s> 6 Year(s) | Troop Offense II 6, Oracle 38 | 21% | 910K | 125K | ||||||||
| 7 | 485K | 245K | 479w 6d 00h 00m 00s> 9 Year(s) | Troop Offense II 7, Oracle 39 | 27% | 2.05M | 155K | ||||||||
| 8 | 585K | 360K | 712w 4d 00h 00m 00s> 13 Year(s) | Troop Offense II 8, Oracle 39 | 33% | 4.65M | 195K | ||||||||
| 9 | 775K | 535K | 1 058w 2d 00h 00m 00s> 20 Year(s) | Troop Offense II 9, Oracle 40 | 41% | 10.5M | 235K | ||||||||
| 10 | 1.2M | 4.63M | 790K | 2.38M | 1 571w 3d 00h 00m 00s> 30 Year(s) | 4 719w 5d 00h 00m 00s> 90 Year(s) | Troop Offense II 10, Oracle 40 | 50% | 50% | 24M | 42.82M | 290K | 1.34M |
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