Troop Defense with Hero During Defense I

Hero Levels in total: 10 Upgrading from 2 to 4 Upgrade cost level: 1 ×1 Gold: 4 850 000 000 Chaos Elements: 520 000 000 Level by level 3: 1 950 000 000 gold · 210 000 000 Chaos 4: 2 900 000 000 gold · 310 000 000 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 1% · 3.5% · 3.75% · 5% · 6% · 7.25% · 9% · 11% · 13% · 15.5% Total at max: 75% Data: Viking Charts by Stars Night.