What are the currencies in Heroes of Mavia?

Could you please explain what are the different currencies used in the game Heroes of Mavia? Are there multiple currencies or just one primary form of exchange? How do players acquire these currencies, and what are they typically used for within the game? Is there any way to convert one currency into another, and if so, what are the rates and conditions involved? Understanding the currency system is crucial for players to progress and thrive in the game, so I'd appreciate any insight you could provide.