Soulstones are special resource you use to open Crypts. Some soulstones allow to open certain crypts while others are used to reduce opening cost.
If you open crypt having soulstone in your inventory, the soulstone is expended automatically. Some special crypts don't have corresponding soulstone.
Soultones are kept in your Army screen using army slots. Any number of soulstones can be stored in one army slot. There are 5 types of soulstones, so if you want to keep all of them they will use 5 army slots.
|Soulstone||Openning (currency)||Stone Crypt|
|Pal's soulstone||Decreasing cost||Pal's Crypt|
|Shadow soulstone||Openning (currency)||Shadow Crypt|
|Ruby soulstone||Decreasing cost||Ruby Crypt, Ruby Crypt х5, Elite Ruby Crypt х5|
|Amber soulstone||Decreasing cost||Amber Crypt, some special crypts.|
The primary source of soulstones are win streaks in PvP.
Sometimes you gain one-time soulstone rewards: