One look at these gigantic machines can break the enemy's spirit, and the ominous drumbeats provoke uncanny terror, forcing foes to flee. Upgrading this Knowledge increases the health stats of Hel’s Harbingers.
| Level | Food | Lumber | Iron | Stone | Silver | Gold | Totem | Time | Requirements | Increased Hel's Harbinger Health | Influence | Hero’s Experience | |||||||||||||
| 1 | 4.5M | 4.5M | 4.5M | 4.5M | 4.5M | 165K | 100 | 8w 4d 00h 00m 00s | 1 | 300K | 130K | ||||||||||||||
| 2 | 9M | 9M | 9M | 9M | 9M | 225K | 150 | 12w 6d 00h 00m 00s | 9 | 680K | 150K | ||||||||||||||
| 3 | 18M | 18M | 18M | 18M | 18M | 310K | 225 | 19w 2d 00h 00m 00s | 17 | 1.55M | 170K | ||||||||||||||
| 4 | 36M | 36M | 36M | 36M | 36M | 430K | 330 | 29w 00h 00m 00s | 25 | 3.5M | 200K | ||||||||||||||
| 5 | 72M | 72M | 72M | 72M | 72M | 595K | 490 | 43w 3d 00h 00m 00s | 33 | 7.8M | 230K | ||||||||||||||
| 6 | 145M | 145M | 145M | 145M | 145M | 835K | 725 | 65w 1d 00h 00m 00s> 1 Year(s) | 42 | 18M | 270K | ||||||||||||||
| 7 | 290M | 290M | 290M | 290M | 290M | 1.2M | 1 100 | 97w 5d 00h 00m 00s> 1 Year(s) | 51 | 40M | 325K | ||||||||||||||
| 8 | 580M | 580M | 580M | 580M | 580M | 1.7M | 1 600 | 146w 4d 00h 00m 00s> 2 Year(s) | 62 | 90M | 385K | ||||||||||||||
| 9 | 1.2B | 1.2B | 1.2B | 1.2B | 1.2B | 2.35M | 2 400 | 219w 5d 00h 00m 00s> 4 Year(s) | 77 | 205M | 455K | ||||||||||||||
| 10 | 2.35B | 4.7B | 2.35B | 4.7B | 2.35B | 4.7B | 2.35B | 4.7B | 2.35B | 4.7B | 3.35M | 11.16M | 3 550 | 10.67K | 329w 4d 00h 00m 00s> 6 Year(s) | 971w 6d 00h 00m 00s> 18 Year(s) | 100 | 100 | 460M | 826.83M | 545K | 2.86M |
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