This article is about the ability.
You may be looking for the reaction command.

Rising Sun (ライジングサン Raijingu San?) is a technique that appears in Kingdom Hearts Union χ.

Mechanics

In Kingdom Hearts Union χ, Rising Sun is a special attack that targets all enemies. It costs 1 special attack gauge to perform. It raises the strength of all the Player's attributes by 1 tier for 2 turns. It inflicts more damage the higher the player's HP. For 7★ medals, Rising Sun can also raise the Player's Upright-based strength by 3 tiers for 2 turns.

Learning Rising Sun

Kingdom Hearts Union χ