To level up your characters quickly, focus on completing quests and battles. Participating in events can also provide bonus experience. Make sure to utilize your resources effectively and consider enhancing your hero's skills.

Effective strategies include utilizing the strengths of your characters, such as their unique skills. Pay attention to enemy weaknesses and deploy your heroes accordingly. Experiment with team formations to find the most effective combinations.

You can earn more gold by completing daily quests, engaging in battles, and selling unnecessary items. Focus on upgrading your resources to maximize gold production over time.

To unlock new heroes, you must progress through the game by completing specific quests or events. Occasionally, heroes may be available through in-game purchases or as rewards during special promotions.

Prioritize upgrades that enhance your hero's main abilities, such as attack power or defense. Look for upgrades that complement your gameplay style and strategy. It's essential to adapt your upgrades based on the challenges you face.