In Rainbow Monsters: Card Battle, players collect monster cards and battle opponents using strategic card combinations. The game involves collecting, upgrading, and battling with a team of monsters.

Yes, in Rainbow Monsters: Card Battle, you can customize your monster team by collecting different cards, upgrading them, and strategically placing them on the battlefield to gain an advantage over opponents.

New monster cards are earned through gameplay, completing missions, participating in events, or through in-game rewards. Regularly logging in also grants players bonus cards.

The energy system in Rainbow Monsters: Card Battle limits the number of battles you can engage in daily. Energy regenerates over time, allowing players to continue battling without restrictions after a certain period.