On marches, massive breastplates are quite a burden for killers, but when they have to defend their lands, enhanced heavy armor is the best choice. Upgrading this Knowledge increases the defense of your killers during defense.
| Level | Gold | Soul Shard | Time | Requirements | Killer Defense During Defense | Influence | Hero’s Experience | ||||||||
| 1 | 105K | 21K | 41w 3d 00h 00m 00s | Killer defense against cavalry 1, Oracle 36 | 1% | 13K | 34K | ||||||||
| 2 | 160K | 31.5K | 61w 3d 00h 00m 00s> 1 Year(s) | Killer defense against cavalry 2, Oracle 36 | 4% | 29K | 42.5K | ||||||||
| 3 | 220K | 46.5K | 91w 1d 00h 00m 00s> 1 Year(s) | Killer defense against cavalry 3, Oracle 36 | 8% | 65.5K | 53K | ||||||||
| 4 | 275K | 68.5K | 135w 2d 00h 00m 00s> 2 Year(s) | Killer defense against cavalry 4, Oracle 37 | 13% | 150K | 66K | ||||||||
| 5 | 330K | 105K | 200w 6d 00h 00m 00s> 3 Year(s) | Killer defense against cavalry 5, Oracle 37 | 18% | 335K | 82.5K | ||||||||
| 6 | 385K | 155K | 298w 2d 00h 00m 00s> 5 Year(s) | Killer defense against cavalry 6, Oracle 37 | 25% | 750K | 105K | ||||||||
| 7 | 450K | 225K | 63w 2d 00h 00m 00s> 1 Year(s) | Killer defense against cavalry 7, Oracle 37 | 34% | 1.7M | 130K | ||||||||
| 8 | 545K | 335K | 657w 6d 00h 00m 00s> 12 Year(s) | Killer defense against cavalry 8, Oracle 38 | 45% | 3.85M | 160K | ||||||||
| 9 | 720K | 495K | 976w 6d 00h 00m 00s> 18 Year(s) | Killer defense against cavalry 9, Oracle 38 | 58% | 8.65M | 195K | ||||||||
| 10 | 1.1M | 4.29M | 735K | 2.22M | 1 450w 4d 00h 00m 00s> 27 Year(s) | 3 977w 00h 00m 00s> 76 Year(s) | Killer defense against cavalry 10, Oracle 38 | 75% | 75% | 19.5M | 35.04M | 240K | 1.11M |
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