After returning from Helheim to Midgard, Vikings see the likeness of Eljudnir — Hel's abhorrent palace — in every Fortress, and this fills them with rage. Upgrading this Knowledge increases the offense of your tier VIII warriors in battles for Fortresses.
| Level | Gold | Soul Shard | Time | Requirements | Tier VIII Warrior Offense in Fortresses | Influence | Hero’s Experience | ||||||||
| 1 | 210K | 41.5K | 82w 1d 00h 00m 00s> 1 Year(s) | Training Limit 1, Oracle 36 | 1% | 19K | 48.5K | ||||||||
| 2 | 320K | 61.5K | 17w 3d 00h 00m 00s | Training Limit 2, Oracle 36 | 3% | 43K | 61K | ||||||||
| 3 | 425K | 91.5K | 181w 1d 00h 00m 00s> 3 Year(s) | Training Limit 3, Oracle 37 | 6% | 97K | 77K | ||||||||
| 4 | 535K | 140K | 268w 6d 00h 00m 00s> 5 Year(s) | Training Limit 4, Oracle 37 | 9% | 220K | 97K | ||||||||
| 5 | 645K | 205K | 399w 2d 00h 00m 00s> 7 Year(s) | Training Limit 5, Oracle 38 | 14% | 495K | 125K | ||||||||
| 6 | 760K | 300K | 592w 6d 00h 00m 00s> 11 Year(s) | Training Limit 6, Oracle 38 | 19% | 1.15M | 155K | ||||||||
| 7 | 890K | 445K | 880w 3d 00h 00m 00s> 16 Year(s) | Training Limit 7, Oracle 39 | 25% | 2.55M | 190K | ||||||||
| 8 | 1.1M | 660K | 1 307w 2d 00h 00m 00s> 25 Year(s) | Training Limit 8, Oracle 39 | 32% | 5.7M | 235K | ||||||||
| 9 | 1.45M | 980K | 1 941w 3d 00h 00m 00s> 37 Year(s) | Training Limit 9, Oracle 40 | 40% | 13M | 290K | ||||||||
| 10 | 2.2M | 8.54M | 1.5M | 4.42M | 2 882w 6d 00h 00m 00s> 55 Year(s) | 8 553w 5d 00h 00m 00s> 163 Year(s) | Training Limit 10, Oracle 40 | 50% | 50% | 29M | 52.27M | 355K | 1.63M |
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