From the Kingdom Hearts Wiki: A world of information not accessible by Gummiship
In Kingdom Hearts Union χ, Flare Break is a special attack that targets a single enemy. It costs 5 special attacks to perform. For 1 turn, it raises the Player's normal strength by 7 tiers, lowers the target's Upright-based defense by 2 tiers, and raises the Special Attack Bonus by 30%. It inflicts more damage with 1 enemy left (including raid boss parts). It raises the enemy countdown by 2.
Learning Flare Break
Kingdom Hearts Union χ