Rigorous training using melee troops as opponents has paid off. Now your siege engines can easily withstand their powerful attacks. Upgrading this Knowledge increases the defense of your siege engines against melee warriors.
| Level | Gold | Soul Shard | Time | Requirements | Siege defense against melee | Influence | Hero’s Experience | ||||||||
| 1 | 150K | 29.5K | 58w 4d 00h 00m 00s> 1 Year(s) | Killer defense during attack 1, Oracle 36 | 1% | 15.5K | 41K | ||||||||
| 2 | 225K | 43.5K | 12w 3d 00h 00m 00s | Killer defense during attack 2, Oracle 36 | 2% | 35K | 51K | ||||||||
| 3 | 300K | 64.5K | 129w 1d 00h 00m 00s> 2 Year(s) | Killer defense during attack 3, Oracle 37 | 3% | 79K | 64K | ||||||||
| 4 | 380K | 95.5K | 191w 5d 00h 00m 00s> 3 Year(s) | Killer defense during attack 4, Oracle 37 | 4% | 180K | 80K | ||||||||
| 5 | 455K | 145K | 284w 4d 00h 00m 00s> 5 Year(s) | Killer defense during attack 5, Oracle 38 | 5% | 405K | 99.5K | ||||||||
| 6 | 535K | 210K | 422w 4d 00h 00m 00s> 8 Year(s) | Killer defense during attack 6, Oracle 38 | 6% | 910K | 125K | ||||||||
| 7 | 625K | 315K | 627w 4d 00h 00m 00s> 12 Year(s) | Killer defense during attack 7, Oracle 39 | 8% | 2.05M | 155K | ||||||||
| 8 | 755K | 465K | 931w 6d 00h 00m 00s> 17 Year(s) | Killer defense during attack 8, Oracle 39 | 10% | 4.65M | 195K | ||||||||
| 9 | 1M | 690K | 1 383w 6d 00h 00m 00s> 26 Year(s) | Killer defense during attack 9, Oracle 40 | 13% | 10.5M | 235K | ||||||||
| 10 | 1.55M | 5.98M | 1.05M | 3.11M | 2 054w 6d 00h 00m 00s> 39 Year(s) | 6 097w 1d 00h 00m 00s> 116 Year(s) | Killer defense during attack 10, Oracle 40 | 16% | 16% | 24M | 42.82M | 290K | 1.34M |
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