Troop Offense with Hero During an Attack I
Hero
Levels in total: 10
Upgrading from 2 to 10
Upgrade cost level: 5 ×3.4
Gold: 176 120 000 000
Chaos Elements: 19 074 000 000
Level by level
3: 6 630 000 000 gold · 714 000 000 Chaos
4: 9 860 000 000 gold · 1 054 000 000 Chaos
5: 13 260 000 000 gold · 1 428 000 000 Chaos
6: 17 170 000 000 gold · 1 853 000 000 Chaos
7: 21 760 000 000 gold · 2 363 000 000 Chaos
8: 27 540 000 000 gold · 2 992 000 000 Chaos
9: 35 700 000 000 gold · 3 910 000 000 Chaos
10: 44 200 000 000 gold · 4 760 000 000 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
2% · 7% · 7.5% · 10% · 12% · 14.5% · 18% · 22% · 27% · 30%
Total at max: 150%
Data: Viking Charts by Stars Night.