Troop Offense with Hero During an Attack II

Hero Levels in total: 10 Upgrading from 1 to 2 Upgrade cost level: 2 ×1.7 Gold: 1 785 000 000 Chaos Elements: 187 000 000 Level by level 2: 1 785 000 000 gold · 187 000 000 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 3% · 11.5% · 13% · 16% · 20% · 24.5% · 32% · 35% · 45% · 50% Total at max: 250% Data: Viking Charts by Stars Night.