Rank Upgrades
Knight -> Bishop
14.00
7.00 USD
Bishop -> Earl
18.00
9.00 USD
Earl -> Duke
45.00
22.50 USD
Duke -> King
50.00
25.00 USD
Duke -> Queen
50.00
25.00 USD
King -> Emperor
70.00
35.00 USD
Queen -> Empress
70.00
35.00 USD