# How To Play ![](https://3448339495-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Fvl4HNHozmqx0jRslGWis%2Fuploads%2FPfOn9sDHvRJXnsjPqDmk%2F1200x628-3.png?alt=media\&token=daa471ad-4680-485b-af2e-145560d0bb88) ### 1. How can I get Hero Cards? You can buy single Hero Cards or Mystery Boxes on Marketplace. ### 2. What are Fusion and Mutation? * Fusion: combine low-level Hero Card to upgrade * Mutation: Change stats & secondary skills For detail, please refer to [Upgrading Features](https://docs.mollector.com/gameplay/upgrading-features) here. ### 3. Does Mollector have different Card rarities? Yes, we categorize Hero Cards into 3 types according to their rarity: Common < Rare < Epic. ### 4. How does the battle system work? Mollector has multiple battle modes, such as: * PvP: Casual, Ranking, vs Friend * PvE: Campaign, World Boss, Dungeon * Brawl * Tournament For detail, please refer to [Game Modes](https://mollector.gitbook.io/mollector/gameplay/game-modes) here ### 5. What is the difference between Normal and Elite Hero Cards? Normal and Elite Hero Cards both have different primary skills. But only Elite Hero Cards possess powerful skills which play a central role in building the entire formation’s tactics. With them, you can create the best card combos in Mollector. ### 6. Does Mollector have a balancing system? Sure, balancing is an important element in fighting game design. Our Game Design team works really hard on this system. ### 7. Can I sell Hero Cards for real money? No and Yes. You can not sell Hero Cards for real money but you can only sell them on Marketplace for $MOL - our governance token, then swap $MOL for real money.