Crystal
Every monster the Wizard and the Archer defeat drops one, before any bonus.
They rank their skills with it, each rank costing more than the last (see Ranks and levels). Some upgrades cost it too. Every town building can research with it.
History
Changes to this material across game updates.
- Other languages +Kryształ+黃晶+คริสตัล
Other languages: クリスタル黄晶Cristal수정KryształKristallКристаллKristal黃晶คริสตัล