The wisest Shamans know that it's not the power reserve that matters when banishing a Ghost, but using it well. Upgrading this Knowledge decreases the Shaman's power depletion.
| Level | Food | Lumber | Iron | Stone | Silver | Gold | Time | Requirements | Reduced Shaman Power Depletion | Influence | Hero’s Experience | ||||||||||||
| 1 | 3M | 3M | 3M | 3M | 3M | 96.5K | 5w 00h 00m 00s | 1 | 270K | 125K | |||||||||||||
| 2 | 6M | 6M | 6M | 6M | 6M | 150K | 8w 3d 00h 00m 00s | 3 | 540K | 270K | |||||||||||||
| 3 | 12M | 12M | 12M | 12M | 12M | 230K | 14w 1d 00h 00m 00s | 5 | 1.1M | 440K | |||||||||||||
| 4 | 24M | 24M | 24M | 24M | 24M | 350K | 23w 5d 00h 00m 00s | 7 | 2.2M | 645K | |||||||||||||
| 5 | 48M | 48M | 48M | 48M | 48M | 550K | 39w 6d 00h 00m 00s | 9 | 4.35M | 890K | |||||||||||||
| 6 | 95.5M | 95.5M | 95.5M | 95.5M | 95.5M | 860K | 67w 00h 00m 00s> 1 Year(s) | 11 | 8.65M | 1.2M | |||||||||||||
| 7 | 195M | 195M | 195M | 195M | 195M | 1.35M | 112w 5d 00h 00m 00s> 2 Year(s) | 13 | 17.5M | 1.55M | |||||||||||||
| 8 | 385M | 385M | 385M | 385M | 385M | 2.15M | 189w 4d 00h 00m 00s> 3 Year(s) | 16 | 35M | 1.9M | |||||||||||||
| 9 | 765M | 765M | 765M | 765M | 765M | 3.4M | 319w 00h 00m 00s> 6 Year(s) | 19 | 69.5M | 2.4M | |||||||||||||
| 10 | 1.55B | 3.08B | 1.55B | 3.08B | 1.55B | 3.08B | 1.55B | 3.08B | 1.55B | 3.08B | 5.45M | 14.59M | 536w 6d 00h 00m 00s> 10 Year(s) | 1 316w 2d 00h 00m 00s> 25 Year(s) | 25 | 25 | 140M | 279.11M | 2.9M | 12.32M |
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