The Inactima prius infusion not only boosts your warriors' immune system but also increases their endurance. Regular use will allow them to remain tireless in battle. This upgrade will increase your Crossbowmen's health reserve.
| Level | Food | Lumber | Stone | Silver | Gold | Time | Requirements | The Inactima prius infusion not only boosts your warriors' immune system but also increases their endurance. Regular use will allow them to remain tireless in battle. This upgrade will increase your Crossbowmen's health reserve. | Power | Hero's Experience |
| 1 | 12M | 14.5M | 9.4M | 23.5M | 45.5K | 05h 00m 00s | 1% | 50K | 130K | |
| 2 | 12.5M | 15M | 9.7M | 24.5M | 73K | 10h 00m 00s | Alchemical Laboratory 23 | 13.5% | 2.7M | 185K |
| 3 | 13.5M | 16M | 10.5M | 26.5M | 105K | 1d 03h 00m 00s | Alchemical Laboratory 24 | 26.5% | 5.5M | 240K |
| 4 | 16.5M | 20M | 13.5M | 33M | 140K | 3d 00h 00m 00s | 41.5% | 9.05M | 305K | |
| 5 | 24.5M | 29.5M | 19.5M | 49M | 195K | 1w 1d 00h 00m 00s | Alchemical Laboratory 26 | 59.5% | 14.5M | 405K |
| 6 | 41M | 49.5M | 33M | 82M | 280K | 2w 5d 00h 00m 00s | Alchemical Laboratory 27 | 80.5% | 22M | 560K |
| 7 | 71M | 85.5M | 57M | 145M | 405K | 5w 2d 00h 00m 00s | Alchemical Laboratory 28 | 105% | 34.5M | 795K |
| 8 | 120M | 145M | 96M | 240M | 600K | 9w 4d 00h 00m 00s | 140% | 53M | 1.15M | |
| 9 | 200M | 235M | 160M | 395M | 880K | 16w 1d 00h 00m 00s | Alchemical Laboratory 30 | 175% | 79.5M | 1.7M |
| 10 | 305M | 365M | 245M | 610M | 1.3M | 25w 5d 00h 00m 00s | 220% | 120M | 2.4M | |
| 816M | 975M | 653.6M | 1.63B | 4.02M | 61w 1d 18h 00m 00s> 1 Year(s) | 220% | 340.8M | 7.87M |
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