To increase your character's power, focus on leveling up your hero and upgrading your equipment. Collect coins and items from chests after each level, and use them to improve your weapons and armor.

Choosing skills wisely is crucial. Always consider your playstyle and the stage's challenges. Opt for skills that enhance your damage output or improve survivability, like healing spells or attack boosts, to tailor your strategy.

If you find yourself stuck, try the following strategies: revisit earlier levels to collect better gear, select skills that counter the enemies' attacks, and practice dodging patterns to enhance your survival and damage potential.

To unlock new heroes, you need to collect hero shards or diamonds. This can be done by completing various stages, defeating bosses, or participating in special events. Accumulate enough to unlock the heroes you desire.

In boss battles, employ dodging techniques and maintain distance from the boss while attacking. It's essential to recognize the boss's attack patterns and find opportunities to strike. Use buffs effectively and update your gear before the battle to maximize your chances.