Cavalry Offense with Hero Against Siege

Hero Levels in total: 10 Upgrading from 2 to 6 Upgrade cost level: 3 ×2.4 Gold: 33 120 000 000 Chaos Elements: 3 564 000 000 Level by level 3: 4 680 000 000 gold · 504 000 000 Chaos 4: 6 960 000 000 gold · 744 000 000 Chaos 5: 9 360 000 000 gold · 1 008 000 000 Chaos 6: 12 120 000 000 gold · 1 308 000 000 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.