Cavalry Offense with Hero Against Siege
Hero
Levels in total: 10
Upgrading from 5 to 6
Upgrade cost level: 2 ×1.7
Gold: 8 585 000 000
Chaos Elements: 926 500 000
Level by level
6: 8 585 000 000 gold · 926 500 000 Chaos
The price depends on the order in which you study a branch: the first costs the base price, the seventh is four times as much.
Bonus by level
0.5% · 1.25% · 1.25% · 1.5% · 2% · 2.5% · 3% · 3.5% · 4.5% · 5%
Total at max: 25%
Data: Viking Charts by Stars Night.