Shaman's Influence During Defense on Enemy Troop Offense
Shamans
Levels in total: 5
Upgrading from 2 to 5
Upgrade cost level: 2 ×1.7
Gold: 77 435 000 000
Chaos Elements: 8 449 000 000
Level by level
3: 13 685 000 000 gold · 1 479 000 000 Chaos
4: 23 800 000 000 gold · 2 635 000 000 Chaos
5: 39 950 000 000 gold · 4 335 000 000 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
0.25% · 0.5% · 1% · 1.25% · 2%
Total at max: 5%
Data: Viking Charts by Stars Night.