How do you beat Marluxia 3 in Kingdom Hearts Chain of Memories?

To beat Marluxia in Kingdom Hearts: Chain of Memories, focus on dodging his powerful scythe attacks and managing your cards effectively. Use cards with high values to break his attacks and prioritize healing cards to maintain your health. Additionally, consider using sleights that can deal significant damage or inflict status effects, such as the "Sonic Blade" sleight. Keep the pressure on him while maintaining a defensive strategy to avoid his more devastating moves.