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In Kingdom Hearts Union χ, Radiant Sword is a special attack that targets all enemies. It costs 3 special attack gauges to perform. It raises the Player's Upright and Reversed strength by 1 tier, the Player's Power-based strength by 7 tiers, and lowers the targets' Power-based defense by 3 tiers for 1 turn. It inflicts more damage the higher the Player's HP.
Learning Radiant Sword
Kingdom Hearts Union χ