Agility is important for spearmen but their light armor provides little protection from blows. Alchemists can change the metallic structure by immersing it in Icidium sulfrum; this will make the armor more durable. This upgrade will increase the defense of your Spears of Fury.
| Level | Food | Lumber | Iron | Silver | Gold | Time | Requirements | Agility is important for spearmen but their light armor provides little protection from blows. Alchemists can change the metallic structure by immersing it in Icidium sulfrum; this will make the armor more durable. This upgrade will increase the defense of your Spears of Fury. | Power | Hero's Experience |
| 1 | 24M | 16M | 20M | 40M | 120K | 07h 30m 00s | 1% | 200K | 430K | |
| 2 | 25M | 16.5M | 20.5M | 41M | 265K | 1d 06h 00m 00s | Alchemical Laboratory 32 | 17.5% | 9.2M | 490K |
| 3 | 26.5M | 18M | 22.5M | 44.5M | 425K | 3d 15h 00m 00s | Alchemical Laboratory 33 | 34.5% | 19M | 550K |
| 4 | 33M | 22M | 27.5M | 55M | 620K | 1w 5d 00h 00m 00s | 54.5% | 31M | 630K | |
| 5 | 49.5M | 33M | 41.5M | 82.5M | 905K | 4w 4d 00h 00m 00s | Alchemical Laboratory 33 | 78% | 48.5M | 740K |
| 6 | 83M | 55.5M | 69.5M | 140M | 1.35M | 10w 2d 00h 00m 00s | Alchemical Laboratory 34 | 105% | 75.5M | 915K |
| 7 | 145M | 96M | 120M | 240M | 2.05M | 20w 6d 00h 00m 00s | Alchemical Laboratory 34 | 140% | 120M | 1.2M |
| 8 | 245M | 165M | 205M | 405M | 3.05M | 5w 3d 00h 00m 00s | 180% | 185M | 1.6M | |
| 9 | 395M | 265M | 330M | 660M | 4.55M | 64w 2d 00h 00m 00s> 1 Year(s) | Alchemical Laboratory 35 | 230% | 275M | 2.2M |
| 10 | 620M | 415M | 515M | 1.05B | 6.65M | 102w 3d 00h 00m 00s> 1 Year(s) | 290% | 405M | 3M | |
| 1.65B | 1.1B | 1.37B | 2.76B | 19.99M | 210w 2d 04h 30m 00s> 4 Year(s) | 290% | 1.17B | 11.76M |
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